Microsoft has just announced public availability of official App-V 4.6 version.

The highly anticipated 64-bit support is now here as are few other enhancements plus two new App-V Resource Kit tools, Application Virtualization SFT View Tool and Application Virtualization MSI Compat Transform.

Both Desktop (part of MDOP 2010 package) and RDS versions of App-V 4.6 are immediately available.