I've been doing a little playing around with MT on Win7 using the VS2010 and .Net 4 Beta 1 to get some WPF MT demos running.
Here are the videos!
Basic how to get MT going code example:
Some internal demos that I've made to work on VS2010 and .Net4 beta 1 - using a WPF4 implementation of the Surface ScatterView control (or something that looks a lot like it)
Get building with WPF 4 in MT! I'm using the Codeplex MultitouchVista project which now has a Win7 driver. Works really well - very sweet when you don't have any MT kit!!!