Last year at JavaOne, the highlight for me was the Redmonk Unconference. It was a great venue to network, learn and discuss issues relevant to the open source community. The guys at Redmonk do a great job of bringing together the technologist and the business/marketing types into one place.
I would recommend to anyone going to JavaOne to try to make it to this year’s edition. My goal this year is to get a better appreciation of how people are using twitter for their community. Mik Kersten is also planning to talk about task focus programming. See you there.