okay, lets get the wish list (by my opinion) straight:
- Atari 2600/800xl: MUST BE!, MUST BE!, MUST BE! (Wish Games: RS Basketball, Combat, )
- Mame: not that important but: (Wish Games: Red Baron, Reactor, Millipede )
- SNES: a version of PocketSNES for the RS90 would be Nice
- Wonderswan:
- MSX: you can use MSXAdvance through ReGBA
- Dosbox: would be a good idea (Wish Games: Virtuoso, 3D Body Adventure, )
- Nes (better audio/performance compatibility): could be a good idea
- Java games: MUST BE!, MUST BE!, MUST BE! (Wish Games: Mercury Meltdown, Air Strike, Luxor, Ricochet Bricks )
- Open Tyrian: Can be a Very Good idea (otherwise just stick around with the GBC Version)
- Quake1-2: not important, except you want to play the whole Retro ID Software FPS Trilogy
- Scummvm: not Important
- A Simple Calculator: A TI 83 Plus Would Be Better
- Commodore64 (C64 or Vice): Can Be a GREAT Thing (Wish Games: Arkanoid 1, Blood Money, )
- ZXSpectrum: you can use ZXAdvance through ReGBA