Traced this review from Ned Bunnell's site. I am not sure if this has been already posted but..

review of K5
http://www.boxedlight.com/k5/index.htm

Ned has this to say,
"..While we all read the official reviews of new cameras, I know that many of also like to read "first hand" from other users their experience with a particular body or lens. With this in mind, I'm providing a link to Jim's "impressions" on using the K-5. As he nicely says "I am a camera user and what I write here are my impressions of the camera as I use it and as I see it.".."

Ned's blog
http://nedbunnell.posterous.com/