The OSD doesn't seem to be working though
and is there any way for mplayer to remember the last volume setting - I'm always having to whack up the volume as soon as the video starts (and the max volume is still a bit on the low side).
The tearing is terrible but hopefully Nokia will fix that in a future firmware/patch - it affects Opera too (eg. dragging a page around) and has been reported by one of the Canola developers as a major issue.
Playing around some more I realise my N800 is using the Nokia770 video output driver which seems to work quite well. However the xv video output driver is repeating frames and getting stuck during playback.