I ran into a snag last night - I imported a db schema (created via Visio / Generate) into a DB Pro project in VS 2008 Beta 2 DB Pro edition. Then I tried to build & deploy into SQL Express (the one that comes in the TFS / VSTS preconfigured VPC). And it balked.

The error message on TSD158 I got wasn't like the one described in the MSDN Forums post Extending Timeout on SqlBuildTask, however, I decided to look into the registry anyways. Interestingly enough, the value for the key LongRunningQueryTimeoutSeconds was zero. Increased that to 120, restarted VS, presto: build is now working!