Microsoft and revolutionary user interfaces?

I just read an interview with a spanish researcher who works for M$ and mentioned MS Seadragon as a revolution in user interfaces. So I went and checked it out: The idea is to have frictionless zooming in and out of interfaces so that you can have a really big desktop and zoom in and out of the various tasks you have running, or a big document and jump pages without need for reload. The promises is really big:
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.

and the performance of the beta viewer still very buggy. At least on my mashine it dod not produce good results neither with Firefox nor with Explorer.

Nevertheless i will keep an eye on it as the idea is really powerfull.