"We recently discovered that the VPCs we distributed as part of the VS2008 Beta2 release will expire on Thursday, November 1, 2007, much earlier than we had originally expected. Since the timeout is at the OS level, we cannot automatically extend the timeout period. As such we are currently in the process of reissuing the VPCs and expect to make them available early next week. "
(full post about this and what you might want to do here)
Three days before I leave to speak at TechEd, using the VS 2008 VPC with Team System On it, you pull the rug from under me. Thanks!