The topic is: D.I.Y Device Sensor Networks using Java.
Bring along some form of wireless GUI, such as a netbook, iPhone, iPod touch or mobile phone with 3G data plan. Make sure you have a Twitter account and a mobile client ready. Audience participation will make it more fun :)
Official Website: https://victorianjug.dev.java.net/2009/March/March.html
Added by Martin Paulo on March 24, 2009