1) The ability to create folders in the home menu (like on iPhone / iPad). It's simply too crowded and could use some more structure and folders can be used to store your software in whichever way you like.
2) Different colors for Gameboy games. I remember the Super Gameboy and some N64 games would let you play your Gameboy games in different colors. I would really like to change the colors depending on the atmosphere of a game. It's also extremely easy to include from a programming perspective. Just make sure the colors aren't too bright.
3) Improved DS emulation. It's still blurry. The last update improved the visuals quite a lot but it's not quite there yet. Still needs more color and sharpness. Also why is there no widescreen option?
4) Some form of light multitasking. I don't need to listen to my music while playing a game but MP3 playback in the home menu / eShop / Internet Browser would be cool.
5) Simple free to download arcade games that give those "game coins" some use. Playing Donkey for one coin per play or something. Just simple, small games.







