With Nintendo's love of releasing Periphrials for The Wii, do you think they'd release a HD enabling one? Maybe games could utilise it. What are your thoughts?

there's no point.....as for the true use & effects of HD wii needs to be a "powerful consoles"which frankly it just isn't.

An upscaling dongle would be possible, but I can't imagine how you could actually make the machine more powerful short of removing the 480i/p restriction. No I don't imagine Nintendo would release it though due to the afformentioned restriction on screen resolution. I imagine if a third part were to releae it that depending on price it could be relatively successful.

That would be akin to the sega 32X era of add ons. How many people bought the N64DD, or 32X or Sega CD? The wii would need to be more powerful to make any relevant use of HD, and adding a "new system" add on is proven to be a terrible idea.

It's not possible. In the days of the 32x, simply adding some memory meant better graphics right away.

An "HD" add-on would require something along the lines of

A) More memory
B) More processing power
C) More video processing and memory

Without any one of those three things, increasing the resolution of a game would cause it to chug, because the current specs of the Wii (arguably) would not handle a high-graphics game above 480p.

Tell me how Nintendo could reasonably release a peripheral with a processor, memory, and video output that could interact and combine with the old Wii, still qualifying it as a peripheral, not an entirely new system.

You can't just output at 1080p and make things look better...they'll look identical at 1080p if the system is exactly the same, and if you try to scale games to that resolution, it'll actually make things look worse. If you try to make them look better, you need better hardware.

There's no reasonable way to do it.

They're doing it with the new advanced Wiimote add-on, and I think it's stupid.  It will alienate people who own old controllers and don't want to cough up $80 for more peripherals, and it's pointless add-ons for new buyers...Nintendo had better make a new Wiimote with the added functionality, because who wants to buy a new Wii, 3 extra controllers, and then 4 MotionPlus attachments?  They're going to have to, unfortunately.  And if there was yet ANOTHER attachment for "HD graphics"...it'd probably another $100+...it'd be ridiculous.