I just ran into this blog while doing some surfing.  It wasn't on my blog roll, but it is now.    It's by Eugene Zakhareyev from Attrice.  If you remember from our Widgets page, they are the makers of the TFVC Workspace Sidekick and the MSBuild Sidekick.  Both of those are tools you should be checking out!  But back to the blog.  Eugene is blogging many of his own personal observations about TFS, and since he's so intimately involved with TFS, it's definitely worth keeping an eye on his findings and comments!  His blog can be found here.