Hello Eurobricks.
My name is Bas and I'm a 24 year old ICT student from the Netherlands. I'd like to share my latest project with you. It's a WiFi controlled Lego robot with an onboard camera. With it I can drive around in my house (or any other place with WiFi) from anywhere on the world while sitting behind my laptop. It uses an Arduino with a WiFi shield to translate the WiFi signal to the Power Functions IR protocol. A stripped wireless IP camera takes care of the video stream.
More info like schematics, photos and source codes can be found on my website: http://brickbot.net/projects/wifi-lego-camera-robot