K-5 Exterior Changes / Minor Improvements (Over the K-7)

Please find three differences in the following picture! ;-)


(Source: http://dc.watch.impress.co.jp/docs/news/20101002_397753.html, in Japanese)

It seems that Pentax has been quite thoughtful in making minor enhancements to the K-5, despite that it just shares the same body chassis as the K-7..

Btw, what is that "Fx" function operated with the RAW button? Any body knows?