I wanted to make sure all TFS users adopting 2010 saw this –
This morning TFS released the GDR patch for TFS 2005 users who want to connect to a TFS 2010 server.
You can find more info about the patch here:
The drive for developing this patch was entirely your user feedback. After long debate, we originally decided to ship only a patch to get a great experience connecting 2008 clients to the TFS 2010 server. However, you guys told us loud and clear you needed 2005 as well. Thanks for the feedback. Here is the link to that 2008 compat patch as well, for convenience.