Orcas Beta2 (Visual Studio 2008) has been released. I like the VirtualPC image, allowing me to use it at work - but avoid the direct installation, which has installed .NetFramework2-SP1 on my machine, causing many .NET 2 apps to stop working.
For LINQ, there are some changes in Beta2: anonymous types are now immutable (except VB.net - read about the new keyword, ‘Key’), and as such the dynamically-compiled code under the hood needs to change. You can download the updated source code package from http://code.google.com/p/dblinq2007/
Side note on Spam in Wordpress:
Since I tweaked the submission page to add an extra question, I am down from some 10 spammers to 1 spammer. He still visits me faithfuly every day. Not sure how many genuine submissions were lost.