Here's a great article from Eric Lee highlighting some more new features in Visual Studio Orcas. Some of these are already available as TFS Powertoys. Others aren't, and I can't wait to get my hands on them, most notably the TFS Build Definition Editor (which might have reduced a little bit of the pain I experienced earlier this week! :-)
Also Build Retention Policies and Continuous Builds will be much-welcomed features. Team Foundation Server 1.0 is a fantastic product, probably the most useful for the average development team that MS have released in many a long year, but it looks like the next release will really build (sorry) on that foundation (sorry again) to make a more fully-featured system. So, when's the release date...?