Last year I had the opportunity to study a post-grad subject called Interaction Design at UTS with Dr. Toni Robertson.
The subject taught us about usability, HCI, heuristics and touched on ubiquitous computing.
This Vodafone website, Vodafone: Future Vision explores a vision of interaction design in the near future, and looks at some possibilities in mobile and portable technologies.
Somewhat experimental and at times, unbelievable, it is well worth checking out.