General: added experimental support for Windows Vista as a host

General: added support for Windows Vista as a guest

GUI: numerous improvements including a redesigned media manager

BIOS: added DMI information for recent Linux kernels

VMM: experimental support for AMD SVM hardware virtualization extensions

VMM: significant performance improvements for Linux 2.6 guests

VMM: performance improvements for Windows guests

Network: fixed issues with DOS guests

Network: fixed creation of more than one host interface during process lifetime on Windows

VBoxManage: added support for compacting VDI files (requires zeroing freespace in the guest)

API: startup even when a VM configuration file is inaccessible or corrupted

API: faster startup using lazy media access checking

Linux Additions: fixed several installation issues and added better error checks

Linux Additions: added support for X.org 7.1

Installer: added packages for Ubuntu 6.10 (Edgy Eft), Ubuntu 6.06 LTS (Dapper Drake) and Debian 4.0 (Etch)