A couple of months ago I blogged the list of bug fixes & enhancements in TFS SP1. Since then, we added a few more. Here are the additional ones. Some of them are just about fixing bugs with the patch itself. I filtered those out of the initial list since they didn't seem that interesting. However, since this is the final release and you had access to the Beta, I went ahead and included them this time.
This is all of the additional bug fixes in TFS SP1 since the original list I posted:
Office integration
Reporting
Server Integration and Admin
Setup
Source Code Control
Work Item Tracking
Brian