1. DPR's Q7 review is out. Wow, it is completed published so quickly this time. Has Ricoh done something? ;-)
http://www.dpreview.com/reviews/pentax-q7
The overall mark given is quite low, though.
2. Full K-50 review at PF:
http://www.pentaxforums.com/reviews/pentax-k-50-review/conclusion.html
So, this is the key point of the conclusion:
"With that said, the K-50 is essentially nothing more than a K-30 in a
redesigned casing. The differences that do exist between these two
cameras are subtle and do not affect image quality or usability. The
only new feature to speak of is dedicated support for eye-fi wireless SD
cards. Thus, relative to the competition, Pentax has stood still for
about a year now."
"The one thing that discourages us from recommending the K-50 is the fact that it's so similar to the K-30."