Remember the Microsoft Surface I talked about way back in November? Looks like it's being used in AT&T stores now, and has the potential to be useful in many other collaborative scenarios, like in hotel lobbies. But if you really think about it, there is one flaw with the table-top design.
If you have several people working at the same Surface, somebody's going to be sitting in what pretty much amounts to a "Master Control" spot, while others may end up getting upside down views of the current data. Or, if everyone can see a right-side-up view of their data, then things could get pretty darned jumbled looking.
Why, use a sphere instead of a plane!
And that's exactly what Microsoft is working on. The obvious applications involve mapping, but even being able to send data to the "other side" of the sphere to make collaboration a bit easier on the eyes is pretty appealing. I'm sure there are some other innovative interfaces possible to make certain tasks easier with this new sphere surface; we just need some ultra-creative folks to think of them.