New Pentax and Olympus top of the line cameras ...
Both well spec'ed.
Both compact.
Both have a suitably comprehensive lens line.
Both with their own plusses and minuses.
I'm in the Olympus camp for various reasons, and I've ordered the new Olympus. Handled it recently, looking forward to its arrival. I was curious about the sizing difference between these two remarkable cameras, so I went to camerasize.com. I put this page together as I thought you might be interested:
https://dl.dropboxusercontent.com/u/25268645/pocomparo/index.html
What struck me more than the size differences is the difference in number of buttons and such. Ricoh concentrated on lots of discrete function buttons, where Olympus made a big use of the 2x2 control system (the little lever on the back above your thumb flips button functions from an A set to a B set).
It will be interesting to see how they play out in use.
Having been a Pentax user in the past, I hope the new Pentax is every bit the fantastic camera its specs propose. It looks like Ricoh has done a good turn for Pentax.
My biggest reservations about Pentax equipment, sadly, are their quality control and the lenses which at one time were two of their greatest strengths. I've never had occasion to be concerned about these things with Olympus gear, which is one*of the reasons why I'm using Olympus. I hope Ricoh has also addressed these issues.
G