This new pocket printer by Zink looks like it could be a new big thing. It connects by bluetooth to your camera phone and prints on the spot 2x3 inch photos directly from the phone...its been referred to as the new kind of polaroid. Not yet available, but it is expected to be sold for around $99.00 and 20 cents per print for paper. It could be a very useful convergent technology that is portable, networked, and a storage device. However, this was tried before by Sony with its Seagate D.A.V.E. which was wireless, Bluetooth connected, and had 20GB of storage, but it didn't get very far. Maybe with the new iPhone and cell phone technology, and "smaller is better" mentality this mini printer gadget will take off.
http://www.computerworld.com/blogs/node/4514
http://gizmodo.com/gadgets/gadgets/zink-pocket-printer-iphone-companion-232549.php