i don't think so
if there is a lot hardware difference- it is impossible
but on se-nse (don't think i ma advertising them- i only "hang" there a lot) there is some progress being made turning k800 to w880- memory stick works, joystick doesn't, somoeone said that he almoast made camera work, another someone said that he may be able to make joystick work
i think (and hope:)) that the conversion will be possible in a few months