As if we needed more gadgets, we now have the iPhone 4 pocket projector. It's a cool little dock for your phone that let's you project images on any surface, and even has built-in speakers for audio entertainment. It's equipped with a focus adjustment and projects up to 50". Built in battery charges via USB connection with the included cord. Watch a complete movie with fully charged battery.
Also available for your iPhone 4 is a set of three lenses which attach magnetically - macro/wide, telephoto and fisheye. Obviously for the photographer on the run.