Prynt - Turn your smartphone into a Polaroid
UnfoldPrints - UnfoldPrints is an app that allows you to make photo collages and order them to print.
Sprocket Printers - Create instantly stickable photos in seconds
Lalalab - Print photos from your iPhone
Mixtiles - Mixtiles is a photography application that turns your photos into self-adhesive wall art.
Print Studio - No hassle printing from your desktop or mobile