Prynt - Turn your smartphone into a Polaroid
UnfoldPrints - UnfoldPrints is an app that allows you to make photo collages and order them to print.
The Polaroid Lab - Turn your smartphone photos into polaroids
Lalalab - Print photos from your iPhone
Impossible I-1 Instant Camera - Take real polaroid photos with your iPhone
Picta Photo Print - Picta Photo Print is an app that allows you to place an order for online photo prints.