Infinitec's IUM is as close as you're going to get, looking like a plain 'ol USB thumb drive but actually storing an infinite amount of, well, stuff. However, you're going to have to wait a little longer to reach into this magic satchel, with the unit's ship date being delayed until the end of August. The price is still the same, at $129, and the company was kind enough to create a video just for you that shows how it all works. It's embedded below, but if you're looking for the Cliff's Notes it shows pairing the thumb drive to a computer, installing some hosting software, and then streaming the Avatar trailer from a laptop to an Xbox 360 in HD with seemingly no lag nor dropped frames. Looks great, but will it work that well in the real world on a typical internet connection? We can't wait to find out.