I must have missed something :-(, there is a Pentax Q10! Well, maybe it is just too small! :-D It will arrive in October and to be sold at 35,000 Japanese Yens (roughly equal to US$440) and have the options of Black, Silver and Red. The sensor is in the same size as the original Q, i.e., in 1/2.3", as we can see from the above.
Via Digicame Info (Japanese)
UPDATE: This could *also* be a HOAX! See my latest finding here! :-o
Related:-
How Large a Sensor that Pentax Could Put Into the Q?