I think a lot of folks would disagree with your assessment. We have never had a single person request that we support Pentax RAW. We personally shoot with Nikon and Canon and so do the majority of our users and that is why we support those cameras so well.
Are you requesting that we support Pentax RAW? Are you willing to share some sample images so we can see if it is feasible to support Pentax RAW?
Pentax does not supply a library like Nikon and Canon do to render their RAW files. Pentax does not publish a specification for their file format. Sample files would help.
-Kirk
No disrespect intended. Though Canon and Nikon are the most popular brands, there are many others out there. You might be missing a huge part of the market by not accomodating them. You can't reliably use a brand support request to determine who would buy your program. More research would do it. Just my two cents worth.
I'd be happy to send you some Pentax RAW files. Just tell me how as each one is roughly 11 MB and too big to attach.
I like your program as it's simple and similar in function to the Pentax-supplied program. However, their program constantly crashes on my Mac and, until today, I hadn't found a suitable alternative. If and when you add support for Pentax, I'd be happy to give you a plug in the Digital Photography Review forum--LOTS of Pentax users there.