Windows 7 beta does not immediately give the user multi-touch demos which is what I was hoping for. So I loaded up Visual Studio 2008 and started looking for examples out there for multi-touch support. A few links that I've found so far are below. Some have source code and some of them also have hardware as well.
WPF Multi-Touch Framework
Sparse UI - Multi-Touch API
Cubit TouchKit - Okay this is just cool cuz they give you schematics and source code for your own hardware/software project
Johnny Chung - Wiimote tracking your fingers
Ken Moore Design - cool projects