Wii games are going to look like a blockfest over HDMI. We apparently won't be able to play VC games on the GamePad. When I first saw the GamePad, I thought that's what it was made for.Except for all the times they don't bother... like how they didn't use any wii features when running gamecube games, requiring original controllers and memory cards.
I honestly think that when Nintendo made the comment about Wii games not being upscaled was that they were referring to it being unable to render at any resolution than what it was originally designed for. We've already seen them handle upscaling via filters with DS games on the 3DS, and that system's ability to render is based on a 48-scanline buffer sent directly to the screen on the DS (but to a separate buffer on the 3DS to apply the scale filters), not full-screen buffers than modern GPUs are capable of. So in essence, I believe that filtering would be used on Wii games at HD resolutions. It won't be sharp as HD, but it won't be blocky either.
Is it possible to use Anti-Aliasing and Anisotropic filters?