Long posted a great review of the work of Steve Hodges work from Microsoft Research in Cambridge including a multi touch laptop that has an amazing interface you just have to see.
I has the pleasure of meeting Steve and his team back in October last year and they have some stunning prototypes in their lab that I wish I could tell you more about. I need to get back up there and shoot some videos...
Through Steve Clayton , I found this link . Basically, it's a few minutes video-demo about the 'surface'