Google the Japanese ROM for the game than get the English patch from the link posted by OP.  Make sure you have a GBA emulator first.

If you haven't guessed, yes I have successfully downloaded Mother 3.  I played a little bit of it.  I haven't played enough to give the game a fair opinion but the game seems very enjoyable so far.

Been playing since the last few hours. I'm just doing anything in the forest right now...!

I have to say the music is EXCELLENT.

For anyone who doesn't know where to get the japanese ROM, send me a PM

this^

Anyone that wants to know where the JP rom is can PM me or zexen_lowe

Plan on putting it on my DS (M3) eventually. I don't have time for it though. If only they finished it during the summer.

Works just fine on my DS. 

This is wonderful news. Nintendo's loss though.