Under their sub-brand MobileCinema, Aiptek’s i20 is the smallest plug-n-play pico projector to iPhone. With its cookie size, the MobileCinema i20 is a two-in-one gadget that projects the phone contents-- and charges the phone.
Plug it in an iPhone with the 30pin connector, and it will provide nearly two hours projection up to 50” display by 1.6 meters in a relatively dim environment. The projection resolution can reach1080p Full HD (960x540). Regardless of many restrictions upon iPhone’s 30pin connection during projection, the MobileCinema i20 allows iPhone users to do the typical Apple pinch and slide control functions on their iPhones as they normally do.
It even turns an iPhone into a visualizer that shows what the iPhone camera sees onto a wall real time.
Besides i20, there is the MobileCinema i50S: an iPhone 4/4S sleeve pico projector. Just slide your iPhone 4/4S into i50S and your iPhone 4/4S seamlessly becomes projector-enabled. 50 lumens DLP optic light engine.