Library of Congress taps Silverlight to enhance access (via Tim Bray). I like some of the stuff Microsoft has been doing, but this is a backward step for the LoC, accessibility, and openness. It feels like "we'll pay to digitize your data, but your web site can only deliver it to Windows users" and someone at the LoC said "ok!". Tell me this isn't the case!
PlayMotion's core product is a camera and software that lets people interact with projected video. Now they have multitouch interfaces to rear-projected screens. This could be very cool. See their sample movies (WMV) for a sample. (Found via this Tech Journal South article).