Prynt is a case that incorporates a little inkless photo printer and connects to your iPhone or Samsung Galaxy smartphone, thanks to a modular system that lets you swap out connectors. Pick a shot from your camera roll, or shoot it with the Prynt app, and you can instantly print out a two-by-three inch photo. Up to 10 pieces of paper fit in the case, which has a battery designed to let you print out 20 prints, each in about 30 seconds.
This seems like a very cool idea. It may have dental application creating before and after pics for patients. On the other hand I believe we are all getting very comfortable viewing and sharing digital photos and the need for a print is a vestige of the past.