The HD version is basically the PC graphics on the consoles, and proper widescreen support. Yeah there are some *minor* touchups to *some* textures in the game but really people who have already experienced BG&E on the PC have no reason to get it on the console unless they want the true widescreen support and maybe prefer a controller.

I think the HD "remake" was done more to get more people to play Beyond Good and Evil (because not many played it back when it was new sadly) to get more attention for the sequel which we will likely get more news on soon.