Brian Harry has just announced that the March 2008 Team Foundation Power Tools have been released:

We've just released a new version of the TFS Power Tools.  This new Power Tool release will work only with the VS/Team Explorer 2008 client (but against either a TFS 2005 or TFS 2008 server).  If you haven't taken the time to upgrade yet, I highly recommend it - you are missing out on lots of great new value we are delivering.

Go check it out!