As you may know, Lab Management GDR is now available. In sync, Microsoft made available VM Prep Tool for Visual Studio Lab Management 2010 GDR, that supports installation of patches for all lab management software on the VM. All patches to be installed should be indicated in LabVMConfig.xml (located in the same folder as VMPrepTool.exe) under "PatchesFolder" parameter. The VM Prep Tool would pick up any patch executables found in this folder and install them on VM.
This operation is supported both in self-service/ admin mode using the VM Prep Tool UI or from the command line.