One of the more fun gadgets I've been playing with lately is the inPulse smartwatch. It can silently buzz when you get a new email and show a preview of your email. It's has an API that works with many Android and Blackberry phones, so you can program your own custom apps to do things like move forward in a PowerPoint presentation or show stock quotes. It's pretty geeky, but in a very space-age way. I can see a lot of people wearing watches like this in a few years.