I had looked at the Pentax Q when it first camera out as a possible point and shoot camera. I dismissed it as the price was over $700, and the sensor is smaller than my Canon S95 albeit with a higher pixel count.
However, when looking at the new Go Pro Hero 3 I decided to give the Q a second look. The original Q has been heavily discounted, and is also sought after as the new Q10 is a plasticky body. In checking the internet for reviews I came across this one, which really puts a good light on the camera.
I may buy the Q for astrophotography, macro and telephoto work, as well as general usage when i want a light camera to walk around with.