It's not always a question of why -- sometimes why not will
suffice. The rolling bot above relies upon the Mindstorms NXT
light sensor's ability to read the contrasting colors on the
iPhone display. After some simple programming and DIY tomfoolery
you can drive the robot from the comforts of your WiFi-enabled
web browser. Overkill? Oh hells yeah, but at least now your
iPhone will serve a purpose after Monday. See how the kids at
Battlebricks did it in the video after the break.  Softbank to
sell (UMTS 3G?) iPhone in Japan