[jloughry]

Electronic Design, EDN, Photonics Spectra, and EE Times.

Here's a URL for a relevant ad:

http://www.awaiba.com/en/products/medical-image-sensors/

This is for a digital video camera the size of the ball on the end of a ball-point pen. They have a stereo 3-D camera too if you have enough space for it...2.8 cubic millimetres.

Edited to add:

Oh, and that includes the lens.