hm... I've got k850 for half o year and i would to turn back to k800... slow software is the main thing which i don't like in k850. In camera in k850 you can only set iso in menu [Raider show new camdriver which you can set iso manual], and new pics size - 5mpx. Rest is the same in camera. Media - good idea, you can change skin player for own in *.thm file. But if you turn the music on, the speed of K850 is terrible! K850 reads flash files and has got an accelerometer. That's all.