The reason why Iphone 4 has the best 720p recording is not because of their optics,lenses,zoom capabilities nor megapixels, it has the best film processing on any phone and that is just a matter of software optimized for the camera.that was why the iphone 3gs had a 3.2 mpg camera and looked great all in the excellent film proccesing

I think if nokia made a well optimized and fast rendering film processer for the nokia phone model and not just for operating system(maemo,symbian,meego etc)It would actually look better on the n900 with carl zeiss optics,duel flash and 1ghz oc on n900

cheers