A good SNES emulator is PocketSNES. Unfortunately, emulating SNES games isn't really the best with pda's, due to the limited buttons. There's an onscreen controller layout ... but as you can only tap one place at a time, trying to do fast paced games kinda blows.
Depending on the game, you can set the physical buttons to perform a certain action/keypress, but it's awkward doing so with the directional button in the center.
It works best with GameBoy and NES emulators. GBA Emulation works ok too ... but still has some of the same quirks that SNES emulation has.
Graphic Design / Photography / Web Design