TED demo of wearable computer tech from MIT Media Labs
ted.org
ted.org
It probably won't be as hugely successful as the iPhone, but for many users it will be very useful.
There is a lot happening in the background that we don't see (risk analysis, expert systems). But once this is in front of us and improving our lives, there will probably be a rapid increase in innovation as more people see the possibilities and a much higher economic incentive to do this type of thing.
Interesting tech with endless useful possibilities!