diff --git a/Eigen/QtAlignedMalloc b/Eigen/QtAlignedMalloc
new file mode 100644
index 000000000..38a108381
--- /dev/null
+++ b/Eigen/QtAlignedMalloc
@@ -0,0 +1,29 @@
+
+#ifndef EIGEN_QTMALLOC_MODULE_H
+#define EIGEN_QTMALLOC_MODULE_H
+
+#include "Core"
+
+#if (!EIGEN_MALLOC_ALREADY_ALIGNED)
+
+void *qMalloc(size_t size)
+{
+  return Eigen::ei_aligned_malloc(size);
+}
+
+void qFree(void *ptr)
+{
+  Eigen::ei_aligned_free(ptr);
+}
+
+void *qRealloc(void *ptr, size_t size)
+{
+  void* newPtr = Eigen::ei_aligned_malloc(size);
+  memcpy(newPtr, ptr, size);
+  Eigen::ei_aligned_free(ptr);
+  return newPtr;
+}
+
+#endif
+
+#endif // EIGEN_QTMALLOC_MODULE_H
diff --git a/Mainpage.dox b/Mainpage.dox
index 00ea4c96b..c7135b0a5 100644
--- a/Mainpage.dox
+++ b/Mainpage.dox
@@ -4,7 +4,7 @@
 // to api.kde.org's scripts
 
 // DOXYGEN_SET_PROJECT_NAME         = Eigen2
-// DOXYGEN_SET_PROJECT_NUMBER       = "2.0-beta6"
+// DOXYGEN_SET_PROJECT_NUMBER       = "2.0 - trunk"
 
 // DOXYGEN_SET_CREATE_SUBDIRS         = NO
 // DOXYGEN_SET_BRIEF_MEMBER_DESC      = YES
diff --git a/bench/sparse_dense_product.cpp b/bench/sparse_dense_product.cpp
index 3caf8598a..9b9af8819 100644
--- a/bench/sparse_dense_product.cpp
+++ b/bench/sparse_dense_product.cpp
@@ -91,51 +91,25 @@ int main(int argc, char *argv[])
     {
       std::cout << "Eigen sparse\t" << sm1.nonZeros()/float(sm1.rows()*sm1.cols())*100 << "%\n";
 
-//       timer.reset();
-//       timer.start();
       BENCH(for (int k=0; k<REPEAT; ++k) v2 = sm1 * v1;)
-//       timer.stop();
       std::cout << "   a * v:\t" << timer.value() << endl;
-//       std::cout << sm3 << "\n";
 
-      timer.reset();
-      timer.start();
-//       std::cerr << "transpose...\n";
-//       EigenSparseMatrix sm4 = sm1.transpose();
-//       std::cout << sm4.nonZeros() << " == " << sm1.nonZeros() << "\n";
-//       exit(1);
-//       std::cerr << "transpose OK\n";
-//       std::cout << sm1 << "\n\n" << sm1.transpose() << "\n\n" << sm4.transpose() << "\n\n";
-      BENCH(for (int k=0; k<REPEAT; ++k) v2 = sm1.transpose() * v1;)
-//       timer.stop();
+      
+      BENCH(for (int k=0; k<REPEAT; ++k) { asm("#mya"); v2 = sm1.transpose() * v1; asm("#myb"); })
+      
       std::cout << "   a' * v:\t" << timer.value() << endl;
     }
-
-    // CSparse
-    #ifdef CSPARSE
-    {
-      std::cout << "CSparse \t" << density*100 << "%\n";
-      cs *m1, *m2, *m3;
-      eiToCSparse(sm1, m1);
-      eiToCSparse(sm2, m2);
-
-      timer.reset();
-      timer.start();
-      for (int k=0; k<REPEAT; ++k)
-      {
-        m3 = cs_sorted_multiply(m1, m2);
-        if (!m3)
-        {
-          std::cerr << "cs_multiply failed\n";
-//           break;
-        }
-//         cs_print(m3, 0);
-        cs_spfree(m3);
-      }
-      timer.stop();
-      std::cout << "   a * b:\t" << timer.value() << endl;
-    }
-    #endif
+    
+//     {
+//       DynamicSparseMatrix<Scalar> m1(sm1);
+//       std::cout << "Eigen dyn-sparse\t" << m1.nonZeros()/float(m1.rows()*m1.cols())*100 << "%\n";
+// 
+//       BENCH(for (int k=0; k<REPEAT; ++k) v2 = m1 * v1;)
+//       std::cout << "   a * v:\t" << timer.value() << endl;
+// 
+//       BENCH(for (int k=0; k<REPEAT; ++k) v2 = m1.transpose() * v1;)
+//       std::cout << "   a' * v:\t" << timer.value() << endl;
+//     }
 
     // GMM++
     #ifndef NOGMM
diff --git a/bench/sparse_product.cpp b/bench/sparse_product.cpp
index dfb4b4335..61eb213e6 100644
--- a/bench/sparse_product.cpp
+++ b/bench/sparse_product.cpp
@@ -137,6 +137,44 @@ int main(int argc, char *argv[])
 //       timer.stop();
       std::cout << "   a * b' :\t" << timer.value() << endl;
     }
+    
+    // eigen dyn-sparse matrices
+    {
+      DynamicSparseMatrix<Scalar> m1(sm1), m2(sm2), m3(sm3);
+      std::cout << "Eigen dyn-sparse\t" << m1.nonZeros()/float(m1.rows()*m1.cols())*100 << "% * "
+                << m2.nonZeros()/float(m2.rows()*m2.cols())*100 << "%\n";
+
+//       timer.reset();
+//       timer.start();
+      BENCH(for (int k=0; k<REPEAT; ++k) m3 = m1 * m2;)
+//       timer.stop();
+      std::cout << "   a * b:\t" << timer.value() << endl;
+//       std::cout << sm3 << "\n";
+
+      timer.reset();
+      timer.start();
+//       std::cerr << "transpose...\n";
+//       EigenSparseMatrix sm4 = sm1.transpose();
+//       std::cout << sm4.nonZeros() << " == " << sm1.nonZeros() << "\n";
+//       exit(1);
+//       std::cerr << "transpose OK\n";
+//       std::cout << sm1 << "\n\n" << sm1.transpose() << "\n\n" << sm4.transpose() << "\n\n";
+      BENCH(for (int k=0; k<REPEAT; ++k) m3 = m1.transpose() * m2;)
+//       timer.stop();
+      std::cout << "   a' * b:\t" << timer.value() << endl;
+
+//       timer.reset();
+//       timer.start();
+      BENCH( for (int k=0; k<REPEAT; ++k) m3 = m1.transpose() * m2.transpose(); )
+//       timer.stop();
+      std::cout << "   a' * b':\t" << timer.value() << endl;
+
+//       timer.reset();
+//       timer.start();
+      BENCH( for (int k=0; k<REPEAT; ++k) m3 = m1 * m2.transpose(); )
+//       timer.stop();
+      std::cout << "   a * b' :\t" << timer.value() << endl;
+    }
 
     // CSparse
     #ifdef CSPARSE
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 021799f5e..44c0ead20 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -64,6 +64,15 @@ else(GOOGLEHASH_FOUND)
   set(EIGEN_MISSING_BACKENDS ${EIGEN_MISSING_BACKENDS} GoogleHash)
 endif(GOOGLEHASH_FOUND)
 
+find_package(Qt4)
+if(QT4_FOUND)
+  add_definitions("-DEIGEN_GOOGLEHASH_SUPPORT")
+  include(${QT_USE_FILE})
+  set(EIGEN_TESTED_BACKENDS ${EIGEN_TESTED_BACKENDS} "Qt4 support")
+else(QT4_FOUND)
+  set(EIGEN_MISSING_BACKENDS ${EIGEN_MISSING_BACKENDS} "Qt4 support")
+endif(QT4_FOUND)
+
 if(CMAKE_COMPILER_IS_GNUCXX)
   if(CMAKE_SYSTEM_NAME MATCHES Linux)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g2")
@@ -195,6 +204,9 @@ ei_add_test(parametrizedline)
 ei_add_test(alignedbox)
 ei_add_test(regression)
 ei_add_test(stdvector)
+if(QT4_FOUND)
+  ei_add_test(qtvector " " ${QT_QTCORE_LIBRARY})
+endif(QT4_FOUND)
 ei_add_test(sparse_vector)
 ei_add_test(sparse_basic)
 ei_add_test(sparse_solvers " " "${SPARSE_LIBS}")
diff --git a/test/qtvector.cpp b/test/qtvector.cpp
new file mode 100644
index 000000000..cc938885a
--- /dev/null
+++ b/test/qtvector.cpp
@@ -0,0 +1,170 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
+// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#define EIGEN_WORK_AROUND_QT_BUG_CALLING_WRONG_OPERATOR_NEW_FIXED_IN_QT_4_5
+
+#include "main.h"
+#include <QtCore/QVector>
+#include <Eigen/Geometry>
+#include <Eigen/QtAlignedMalloc>
+
+template<typename MatrixType>
+void check_qtvector_matrix(const MatrixType& m)
+{
+  int rows = m.rows();
+  int cols = m.cols();
+  MatrixType x = MatrixType::Random(rows,cols), y = MatrixType::Random(rows,cols);
+  QVector<MatrixType> v(10, MatrixType(rows,cols)), w(20, y);
+  v[5] = x;
+  w[6] = v[5];
+  VERIFY_IS_APPROX(w[6], v[5]);
+  v = w;
+  for(int i = 0; i < 20; i++)
+  {
+    VERIFY_IS_APPROX(w[i], v[i]);
+  }
+
+  v.resize(21);
+  v[20].set(x);
+  VERIFY_IS_APPROX(v[20], x);
+  v.fill(y,22);
+  //v.resize(22);
+  VERIFY_IS_APPROX(v[21], y);
+  v.push_back(x);
+  VERIFY_IS_APPROX(v[22], x);
+  VERIFY((size_t)&(v[22]) == (size_t)&(v[21]) + sizeof(MatrixType));
+
+  // do a lot of push_back such that the vector gets internally resized
+  // (with memory reallocation)
+  MatrixType* ref = &w[0];
+  for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
+    v.push_back(w[i%w.size()]);
+  for(int i=23; i<v.size(); ++i)
+  {
+    VERIFY(v[i]==w[(i-23)%w.size()]);
+  }
+}
+
+template<typename TransformType>
+void check_qtvector_transform(const TransformType&)
+{
+  typedef typename TransformType::MatrixType MatrixType;
+  TransformType x(MatrixType::Random()), y(MatrixType::Random());
+  QVector<TransformType> v(10), w(20, y);
+  v[5] = x;
+  w[6] = v[5];
+  VERIFY_IS_APPROX(w[6], v[5]);
+  v = w;
+  for(int i = 0; i < 20; i++)
+  {
+    VERIFY_IS_APPROX(w[i], v[i]);
+  }
+
+  v.resize(21);
+  v[20] = x;
+  VERIFY_IS_APPROX(v[20], x);
+  v.fill(y,22);
+  //v.resize(22);
+  VERIFY_IS_APPROX(v[21], y);
+  v.push_back(x);
+  VERIFY_IS_APPROX(v[22], x);
+  VERIFY((size_t)&(v[22]) == (size_t)&(v[21]) + sizeof(TransformType));
+
+  // do a lot of push_back such that the vector gets internally resized
+  // (with memory reallocation)
+  TransformType* ref = &w[0];
+  for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
+    v.push_back(w[i%w.size()]);
+  for(unsigned int i=23; i<v.size(); ++i)
+  {
+    VERIFY(v[i].matrix()==w[(i-23)%w.size()].matrix());
+  }
+}
+
+template<typename QuaternionType>
+void check_qtvector_quaternion(const QuaternionType&)
+{
+  typedef typename QuaternionType::Coefficients Coefficients;
+  QuaternionType x(Coefficients::Random()), y(Coefficients::Random());
+  QVector<QuaternionType> v(10), w(20, y);
+  v[5] = x;
+  w[6] = v[5];
+  VERIFY_IS_APPROX(w[6], v[5]);
+  v = w;
+  for(int i = 0; i < 20; i++)
+  {
+    VERIFY_IS_APPROX(w[i], v[i]);
+  }
+
+  v.resize(21);
+  v[20] = x;
+  VERIFY_IS_APPROX(v[20], x);
+  v.fill(y,22);
+  //v.resize(22);
+  VERIFY_IS_APPROX(v[21], y);
+  v.push_back(x);
+  VERIFY_IS_APPROX(v[22], x);
+  VERIFY((size_t)&(v[22]) == (size_t)&(v[21]) + sizeof(QuaternionType));
+
+  // do a lot of push_back such that the vector gets internally resized
+  // (with memory reallocation)
+  QuaternionType* ref = &w[0];
+  for(int i=0; i<30 || ((ref==&w[0]) && i<300); ++i)
+    v.push_back(w[i%w.size()]);
+  for(unsigned int i=23; i<v.size(); ++i)
+  {
+    VERIFY(v[i].coeffs()==w[(i-23)%w.size()].coeffs());
+  }
+}
+
+void test_qtvector()
+{
+  // some non vectorizable fixed sizes
+  CALL_SUBTEST(check_qtvector_matrix(Vector2f()));
+  CALL_SUBTEST(check_qtvector_matrix(Matrix3f()));
+  CALL_SUBTEST(check_qtvector_matrix(Matrix3d()));
+
+  // some vectorizable fixed sizes
+  CALL_SUBTEST(check_qtvector_matrix(Matrix2f()));
+  CALL_SUBTEST(check_qtvector_matrix(Vector4f()));
+  CALL_SUBTEST(check_qtvector_matrix(Matrix4f()));
+  CALL_SUBTEST(check_qtvector_matrix(Matrix4d()));
+
+  // some dynamic sizes
+  CALL_SUBTEST(check_qtvector_matrix(MatrixXd(1,1)));
+  CALL_SUBTEST(check_qtvector_matrix(VectorXd(20)));
+  CALL_SUBTEST(check_qtvector_matrix(RowVectorXf(20)));
+  CALL_SUBTEST(check_qtvector_matrix(MatrixXcf(10,10)));
+
+  // some Transform
+  CALL_SUBTEST(check_qtvector_transform(Transform2f()));
+  CALL_SUBTEST(check_qtvector_transform(Transform3f()));
+  CALL_SUBTEST(check_qtvector_transform(Transform3d()));
+  //CALL_SUBTEST(check_qtvector_transform(Transform4d()));
+
+  // some Quaternion
+  CALL_SUBTEST(check_qtvector_quaternion(Quaternionf()));
+  CALL_SUBTEST(check_qtvector_quaternion(Quaternionf()));
+}
diff --git a/test/stdvector.cpp b/test/stdvector.cpp
index ac7a2967e..be9fc275b 100644
--- a/test/stdvector.cpp
+++ b/test/stdvector.cpp
@@ -1,7 +1,7 @@
 // This file is part of Eigen, a lightweight C++ template library
 // for linear algebra. Eigen itself is part of the KDE project.
 //
-// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
+// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
 //
 // Eigen is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public