Photosynth (http://en.wikipedia.org/wiki/Microsoft_Live_Labs_Photosynth) Prototype (from a "TED Talk (http://en.wikipedia.org/wiki/TED_%28conference%29)")
http://www.collegehumor.com/video:1762315
^ includes "Seadragon (http://en.wikipedia.org/wiki/Seadragon)", the zoomable UI (http://labs.live.com/Seadragon.aspx) from one of Microsoft's more recent acquisitions.
Quote
Seadragon is an incubation project resulting from the acquisition of Seadragon Software in February. Its aim is nothing less than to change the way we use screens, from wall-sized displays to mobile devices, so that visual information can be smoothly browsed regardless of the amount of data involved or the bandwidth of the network.
the following four "promises" of Seadragon:
1. Speed of navigation is independent of the size or number of objects.
2. Performance depends only on the ratio of bandwidth to pixels on the screen.
3. Transitions are smooth as butter.
4. Scaling is near perfect and rapid for screens of any resolution.
see also http://en.wikipedia.org/wiki/Microsoft_Live_Labs_Deepfish