Username2324 on 02 March 2008
Straight from Wiki:
Output for Wii
480p (PAL/NTSC), 480i (NTSC) or 576i (PAL/SECAM), standard 4:3 and 16:9 anamorphic widescreen[63]
I may need to put on my reading glasses, but I don't see 720p anywhere in there.... Wai- oh never mind that's not it.