iPrint Photo: From the iPhone wirelessly on HP inkjet printers

HP expanded the iPhone to the possibility of directly to a Wi-Fi-enabled inkjet printer to print.
The Free App Store program available HP Photosmart iPrint allows photos directly from the film roll or the photo library in the format 10 x 15 cm on a compatible HP printer (list here) or greater.
Thanks to the integrated way in the iPhone, screen shots, to create and direct role in the camera store, it is therefore almost any screen content of the iPhone directly to a printer.