I find it hilarious that every Ritz, Wolf, Kits, etc. that I have been to, mentioning the word Pentax is like a dirty word. All you will get in reply is some eye rolling and the generic (almost rehearsed sounding),
"Pentax is going out of business". I have heard every salespersons' stories for years and yet Pentax seems to be doing fine under their new owners (Hoya), who bought them out in 2007 for $864M. I don't see them going anywhere, anytime soon.
I find this post from openphotographyforums.com ironic because the author was writing about how (despite the rumors back in 2007), Pentax was not going out of business and that people should go ahead and buy the K10D or K100D. I also find it ironic that he mentioned the 645D (which is still available 3 years later).
Here is the link to his post:
My Meeting with Pentax Today... - Open Photography Forums
On a side note, Pentax Japan's website shows an outline of what could be the 645D and under their news section I translated this:
"This new product is its dual equipped with SD · SDHC memory card slot, the unlikely event that an error has occurred and peace of mind of one card, and two concurrent writes the same data slot, well paced shooting in low-capacity cards continued, and two different operations can be sequential write across the slot.
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I am not sure if it has to do with the 645D or another camera, but it is a cool idea I think.
-Jason