If I wanted to read anything, I'd be more interested in a review of their (limited) lenses. Pentax is known for extracting every last amount of DR from the Sony sensor in the K-5/II/II-s series. The K-3 is rumoured to use a Toshiba 24mp sensor instead of the Sony one, and it shouldn't be a slouch in any regard.
The review of the K-7 here touches on the usability and ergonomics (which I find excellent - after handling the comparable models from Nikon, Sony and Canon, I walked away with a Pentax), and the K-3 is mostly the same control layout. Sean Reid champions the controls as well.
Even though I will continue to shoot with Pentax lenses for a number of reasons, I would still find it interesting to read what Michael thinks about the latest "updated" Limited line-up. Maybe a review of the 560mm as well, if for nothing more than to see what another experienced eye thinks about their glass.