It is always (well, almost always) fun to see how people illustrate the future; and usually we can learn a lot by studying the past future visions. Microsoft has a bit more money than most of us, and can thus create rather fancy futuristic videos:
Some of these things appear rather likely, incremental evolutions from the present paradigms of interactive and augmented computing. Some were a bit unclear to me — what was the point, how that was supposed to work. And in general, the feeling was a bit similar to after watching Minority Report — fascinated, but also a bit put off, in classic dystopian style.