Photosynth is a powerful set of tools for capturing and viewing the world in 3D. You can share these views with your friends on Facebook, publish them to Bing Maps, or embed them in your own Web site. In simple terms, Photosynth allows you to take a bunch of photos of the same scene or object and automagically stitch them all together into one big interactive 3D viewing experience that you can share with anyone on the web. It’s pretty cool and the possibilities seem almost endless to me.
The app also features an innovative interactive capture system that lets you see your progress during capture, powered by Photosynth’s computer vision algorithms. Your images are quickly stitched together into an interactive panorama which you can explore right on your device. All of your panoramas are stored on your device so you can view or share them at any time. Currently the app is supported by iPhone3Gs, iPhone4, iPad2, and the 4th generation iPode Touch.