My problem with VS2010 Beta was due to a bug

Microsoft recently provided a link to fix the problem in response to my Connect feedback:

https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=481884&wa=wsignin1.0

This appears to be a bug which will be corrected in Visual Studio Beta2 (date tbd).

The following preventative measure is provided in this KB article from Microsoft. Thank you Microsoft for following up the connect feedback.

http://support.microsoft.com/kb/2001109

The problem is summarized here:

http://hodentek.blogspot.com/2009/08/problems-installing-microsoft-visual.html