Imaging resource has reviewed the Pentax Optio MX digital/video camera.

Here is an extract of the review conclusion:
“[…] The Optio MX operates as both a digital still camera and a digital video camera.
[…] The Optio MX’s video recording isn’t quite up to the quality level of most digital camcorders.
Overall though, the Optio MX does serve the middle ground of camcorder and still photography in an innovative and lightweight package–with one heck of a zoom, and for a very good price.”