#3 Suggestion: Free space indicator

...that way I don't have to go to System Settings and look up a Block to MB converter when I want to see if a game will fit on my SD Card. There should probably be an indicator for both SD Card space and System Storage space (for DSiWare). Maybe the indicators could be placed on the top left of the bottom screen.

fwiw, you could also use FBI. It shows the free space in MB in the lower left of the top screen. I agree it would be useful to have it integrated, but that will at least save you the converter. :)