R4 Revolution for DS

I just bought this handy little toy for my Nintendo DS. Besides the fact that I can store and play a whole lot of DS roms on the system as though I had the actual games, I know you can get audio, video, and images/text to play/display with the right stuff. There's even a working emulator for NES games (though a bit buggy).

My thirst for piracy is such that I want MORE than the DS. I want the good old GBA games to play using this thing. Is there some program or something that will make this thing play a GBA rom stored on the R4's memory card? In essence, I could have the entire GBA/DS library of games worth having on a few mini SD chips.

Also, any other cool stuff I can do with this thing?

No, slot 1 cards can only play DS games since they are in the DS slot.  Buy an M3 for the GBA slot if you want GBA games.