Infusion has been doing great Surface work for a mutual client, so I sat down with their founder, Greg Brill (no relation) last week to talk multitouch. I look forward showing those projects to you as soon as they become public.
Here's something I can show now. If there's anything that drives me more nuts than photoviewing demos on Surface, it's the ubiquitous rip offs of Jeff Han's Worldwind demo at TED.
Infusion put themselves at risk and did one, but theirs is cool...and VERY Useful.
Here's their answer.
How might one use artifacts to magify or modify datasets on the table?