This isn't exactly what you're looking for, but I've found a program that I find immensely useful while using my touchstream in windows: Launchy
I changed the default HotKey to Alt-L, then I mapped a two-handed gesture (three fingers on each hand) to produce Alt-L.
So, now, to launch an application, I tap three fingers on both hands, then begin typing the name of the app. It usually finds the app I want in 2-3 letters. I love it, and I miss it when using my TS on someone else's computer.
Like I said, it's not exactly what you're looking for, but I have found it to be a great little launcher, so I figured I'd point it out.