Microsoft Photosynth
I came across a website today while browsing one of the RC Helicopter forums which I thought was pretty cool. It's called Photosynth by Microsoft. You take a BUNCH of pictures of an object, room, area, whatever from all angles and then feed it to the Photosynth software and it creates like a 3D walkthrough of whatever it is you took pictures of. It's pretty cool. I didn't try to create my own or anything so I don't know the details of creating a "Synth", but I did look at a few that other people had done. I think something like this would be great for selling a home, car, boat or whatever.
I think it's a cool idea that does have a place in the world. The only bad thing is that you have to install the software to view the synths, it would be better if it were just an activex control or something.