A friend pointed this out to me at
Vic Divecha's Official Tech Blog. The technology is multi-touch screens, developed at NYU (as per post on the Cult of Mac blog). And the interesting part is that Apple has patented these interactions, which means... a TabletMac?
Check out the video here. You won't regret it.
What's even more remarkable is the recent unveiling of Intel-based Macs, that will be able to run Windows XP faster than Wintel boxes will. Finally, a convergence of systems that will hopefully be able to provide the best of all worlds. And with this kind of glimpse of what is to come, I find that exciting.