Can the Wii do any sort of HW antialiasing or is it all software?

[greenmedic88]

AA is also used to smooth scaled out low res polygon textures. That was one of the trademarks of N64 visuals back in the day. It explains why most of the games had ridiculously blurred textures to compensate for their low resolutions (with less storage space using costlier chip based cartridges).