I have just tryed 'rgbarcade' for the GBA and I must tell you it's excellend !!!
http://www.gbafan.com/emu.html#z-rgbarcade
Sorry but I could not help my self
After gmames death my last hope for arcade fun on my gp is fmame32, or is it a rumor I don't know...
http://www.gbafan.com/emu.html#z-rgbarcade
Sorry but I could not help my self