Photosynth Demo
A couple of days ago Microsoft labs released a demo of their new Photosynth software on the web. Photosynth allows the aggregation of social picture networks (a la Flickr) into a completed image in addition to allowing a level of depth to image browsing previously unavailable. There is also a very impressive video of the demo available.
This software is absolutely amazing, especially when you consider the programmatic side of this. People bashing this without actually watching the video AND playing with the operating demo are really missing out. You don't have to like it but at least have a reason that shows some form of intelligence. Not just "the intro was poorly done".