The CineBeam PH30N is a blast. It has two hours of battery life, so you can watch a short movie anywhere (plug it in for longer sessions), and you can even stream things straight from your cell phone—no cables required. With 720p resolution and up to a 100-inch image size all from a projector that fits easily in a purse, you'll be watching Netflix in the woods in no time. Just wait until it's dark, because portable projectors aren't nearly as bright as their beefier, cabled counterparts.