Some very interesting and creative UI and technologies coming around... (pulled from an AFFUG email discussion).
Bumptop desktop - http://www.youtube.com/watch?v=M0ODskdEPnQ
Jeff Han: Unveiling the genius of multi-touch interface design - http://www.ted.com/index.php/talks/view/id/65
Microsoft Surface - http://www.microsoft.com/surface/
Here is a good overview of the last 2 -http://link.brightcove.com/services/player/bcpid932579976?bclid=932553050&bctid=933742930
Of course Apple got the jump on them with the iPhone