The K-7 does live up to the hype for me too. It's about all those small but important changes compared to the K10D and K20D that makes it a much better camera.
Just one thing I like a lot (which tends to be overlooked but it's important for me because I change lenses *often*): the anti-dust solution works perfectly. Since I bought the K-7 last summer I haven't used my arctic butterfly at all. Not once. I used to do that every two weeks when I owned a K10D and a K20D - but with the K-7 it just is not needed. And I change lenses every day....
The better AF, better white balance, etc. etc., do I still have to continue?