Sorry, glitch made a double post.

I expect that when Nintendo switches to a 65nm (or possibly the 45nm process) they should be able to overclock the GPU to a level where boosting the resolution should not be a problem; the GPU might end up having some redesign (possibly increase the number of pixel pipelines) but it wouldn't require anything too major (If they wanted to go crazy they could include texture filtering to improve the quality of textures automatically when it is displayed at a higher resolution but that is probably not necessary).

The only real question is why would they bother?

IIRC, I think the Wii's graphics/processor was made on a .65nm process.

Months ago Nintendo's press site had a week where everyone could gain access and it was stated that both the GPU and CPU used a 90 nm CMOS process; the same process that IBM was using for first generation Cell and XBox 360 processors. It is likely that in the next few months Nintendo will get IBM to update their process to a 65nm process for the Wii (like the XBox 360 and PS3).

Well I sure wouldn't.  I have a PS3 for HD.  Being about to play DVD movies wouldn't hurt, but I have a PS2 and PS3 for that.  And a divx player.   And a PC.

i dont think nintendo needs to do this, but if they did im sure it would sell like no bodys business. sony and microsoft would become emo and start cutting themselves daily, and the wii would completly take control. who knows, it could happen, but i doubt it and really dont care.