Yup yup... I was browsing my hard drive and i found the...*tararatatatatata*.. GBA Bios!!! Well, to make it simple, all platforms have great gba emulators, so there won't be any compatibility problems. The main issue is making a gba version, i never thought about the gba developement process, so i'm not sure if this is 100% possible (according to my google search), but it seels that it'll be a less ressource consuming game, and the menus will be cramped.
The other problem is that it will only be available for jailbroken iOS devices (according to my google search), since the app is nowhere to be found on the app store.
That's it, my little briefing is over, thanks for reading this completely useless idea (according to me)