is it possible to have GBA games on my DS R4 card?? i don't know where to get a GBA looking one (for the 2nd slot) and so i was wondering if there is a program/software that will allow my R4 to play GBA games as well as NDS ones any help will be appreciated
You can't play GBA on an R4 unless you have a slot-2 device. You can get a slot-2 device from http://realhotstuff.com/ or http://shoptemp.com/. I recommend the EZ Flash 3-in-1.
Agreed with ace101, your best bet for loading GBA roms and running the DS Browser would be to purchase the EZFlash 3-in-1 GBA flash cart. miros
You could always go the free route and mod your R4 by opening it up and fucking with it. There aren't any tutorials about that though.
The SuperCard DSTwo features GBA emulation. I'm going to get one once I get enough money. The GBA emulator is built in and there is no need for a slot-2 device. It is majorly intended for the DSi/DSi XL.