http://www.pentaximaging.com/slr/Q_Black/ They are calling it the world's smallest interchangeable lens camera. ; It uses a P&S sized sensor, so this is even smaller than the m4/3 mount. ; ; Supposedly they will release another mirrorless system, but with a larger sensor later this year. Your move Canon and Nikon, you are the only ones left. On a side note, I find it amusing that Pentax released the Q while last year some pranksters photoshopped Nikon releasing a new Q mount at Photokina.