In the next 10-15 years I think three things will shape consumer computing:

1. Wearable computing
2. Context awareness
3. Augmented reality

All of these things are possible now, but in the next few years will be leveraged better.

If I had any money, I'd be putting it into these.

I'm inclined to agree with Steve, particularly on the wearable computing front and context awareness.

Of course, the *first* thing I expect to see is a cheap, consumer level product supported by adverts being spammed at you by walking into range of a small device in store front windows!