Stephen Elop, the president of Microsoft’s Business Division recently held a presentation where he allowed the viewers to glimpse 10 years into the future. It’s amazing to look at a "real" interpretation of the future interfaces and technologies rather than the standard hollywood stuff. – You know the holographic projections that for some strange reason still use slow-typing green text on a black background. The video is really inspirational, and what I really liked was how Stephen, after showing the video, went through all the technologies show in the clip and discussed how they could be accomplished.
If you’re in a rush you can skip the first part of the presentation and jump to directly to the video at about 14½ minutes. But I really recommend watching the whole thing, especially the final rundown where he discusses the underlying technologies.