Pocket Projector for iPhone
This Pocket Projector may not pack the highest resolution around (an expected 640×360) nor the most powerful speakers or LED projector bulb (15 lumens), but hell, it’s basically an iPhone case and easily fits in a pocket. It can transform a wall into a screen up to 50 inches and sports a focus dial for adjustments and clarity. The beefy built in battery can last through a movie or so and can double as a backup battery to charge your phone in a pinch.
Check it out at Amazon – $90