DIY Rovio Northstar Truetrack Beacon

My fellow Thingicans and Thingocrats; thanks to your help, this project is well under way!

BACKGROUND (robot):

The Wowwee Rovio ( http://www.wowwee.com/en/products/tech/telepresence/rovio/rovio ) is a IP-based Wifi Mobile Webcam, sometimes marketed as a simple telepresence robot. At a price point of about $200, it's money well spent; the system is very well designed both in hardware and software, and you'd have a /very difficult/ time duplicating the ability of this robot for twice the pr