Fredrik of the RIM Advanced UX Prototyping team in Malmo, Sweden, showcases an Arduino prototyping project controlled by a BlackBerry PlayBook, which features an infrared sensor mounted on a servo that can be used, among other things, to protect your milk from aliens. This video demonstrates the PlayBook tablet's ability to integrate with a number of prototyping components. Be interesting to see what else will come about from this feature. I'd like to see it go the way of music recording as well to be able to hook up various devices and record with our PlayBooks. What would you do with this feature?