It's old, but I've read so many posts about people saying how the DSi doesn't have the GBA RAM or even enough RAM to emulate GBA, I just HAD to post this.
http://gizmodo.com/5181894/virtual-console...to-nintendo-dsi
"At a Japanese Club Nintendo event, Nintendo confirmed that a Virtual Console would be coming to the DSi in Japan, bringing Gameboy and Gameboy Advance titles with it."
http://gizmodo.com/5181894/virtual-console...to-nintendo-dsi
"At a Japanese Club Nintendo event, Nintendo confirmed that a Virtual Console would be coming to the DSi in Japan, bringing Gameboy and Gameboy Advance titles with it."