SciFi Author Vernor Vinge gave a keynote about ubiquitous computing and his view into the future.

Remarkable.

Localization: you dont need complex GPS or other technologies if you have smart RFID's - tons of them - who are able to communicate with each other

Wearable Computing: In this environment, wearable computers are to the embedded networks what the PCs have been to our Internet. This is something that you could imagine working out very smoothly, almost seamlessly, and that's already accepted by consumers.

Augmented reality: Together with displays (which should be available already but are not by any surprise) the whole reality will change because you can create whatever reality you want

Cyberspace: That means that virtually every aspect of purpose, faith and fantasy could have a constituency in such a world, and that really raises a lot of possibilities for products, and the products actually go beyond games.

The whole thing: Vernor Vinge On The 'Inside Out' Cyberworld