We would like to switch from VS2010 to SP1, but we are not ready to upgrade TFS2010 to SP1. Do I have to wait or can VS update independently of TFS? Are there any documents confirming this?
The short answer is no. You do not need to update TFS if you want to use VS2010 SP1 if they are not installed on the same computer. Brian Harry has written a comprehensive blog if you want all the gory details