It's not the first iPhone 4/4S pico projector battery case we've come across here at Engadget, but we spotted this little number at Computex 2012 and just couldn't resist sharing it with you. What makes this accessory a bit more unique is that it incorporates the latest in DLP technology from Texas Instruments. As such, it's capable of projecting a 640x360-pixel image up to 70 inches across with
