Seem like there is a new firmware release by pentax
Here the link :
K5 http://www.pentaxforums.com/forums/pentax-k-5-forum/148843-pentax-k-5-v1-10-firmware.html
Kr http://www.pentaxforums.com/forums/pentax-k-r-forum/148850-k-r-1-10-firmware-uk-site.html
Gps add on was reported . Other that that not sure if there is any new improvement yet
Here the link :
K5 http://www.pentaxforums.com/forums/pentax-k-5-forum/148843-pentax-k-5-v1-10-firmware.html
Kr http://www.pentaxforums.com/forums/pentax-k-r-forum/148850-k-r-1-10-firmware-uk-site.html
Gps add on was reported . Other that that not sure if there is any new improvement yet