On the MDOP blog there is an announcement  of new releases of both APP-V (which runs applications in a Virtualized “bubble” so they don’t clash with each other) and MED-V (which runs a centrally managed virtualized OS)

The major points App-V 4.6 is now compatible with 64-bit Windows client and server platforms, enabling IT to take advantage of x64 for client hardware refresh AND also deploy App-V to Windows Server 2008 R2 using remote desktop with scale advantages that come from 64 bit. The springboard site has a Q&A on App-V

MED-V adds support for Windows 7 (32bit and 64bit) – this is what large organizations should be using to deliver similar functionality to XP-Mode but with central management.

Bonus link:

On the Windows Team blog, Gavriella explains why this important to improving the Total Economic Impact – and Forrester have already published some very positive numbers on TEI for Windows 7