Best Digital Cameras - USB 2.0 (480 Mbit/sec) Interface Type, 4 to 9 Frames Frames Per Second, Selective single-point Focus Type, 10 to 15 Megapixel Resolution
'For those looking for an ultra small compact system camera, the Pentax QS-1 is a reasonable option, especially if you've got some kind of affinity to the Pentax brand. '
It's the world's smallest compact system camera, but is that enough?