Well this will probably go nowhere but at this point I'm desperate and desperate people do stupid things. So here we go!
The problem: GBA games on 3DS only use the top screen. There is no way officially to switch between the screens. I asked smea if he thinks it's possible to make GBA.cias use the bottom screen, and he thinks it's probably possible with an AGB_FIRM patch.
The task: Provide a way for end users to play GBA.cias on the bottom screen. For example a windows PC tool to patch GBA.cia's, an xdelta patch for the various AGB_FIRMs or simple hex-editor instructions. Please post your method either in this thread or if you prefer via PM.
The prize: A free amazon gift card worth $50/€45/£38.
Please no spam/hate posts, my feelings are hurt very easily