I've previously mentioned here that I worked on a really cool Java Realtime project for JavaOne this year. Before JavaOne I couldn't really talk about the project, but it's not a secret anymore though. Here's a video of Greg Bollella, the project lead, on stage with James Gosling:
Greg Bollella & James Gosling : BlueWonder Onstage
I was involved with the low level drivers and board controls as well as the "industrial" user interface and other portions of getting the system operational. I also got to play with fun (dangerous) power tools a bit.
The rest of James' keynote can be found here :
James Gosling JavaOne 2008 General Session