Video Demo: RUSE Using Windows 7 Multitouch Features
Ubisoft's strategy game, R.U.S.E. will be among some of the first games to use Windows' 7 touch features. If you don't know what R.U.S.E. is (I don't blaim you if you don't) check out this website.
I think it is a really good idea for strategy games to use the multitouch features as it will make playing the game a lot easier and more enjoyable. As you can see from the video it looks great.