Hmm.. Very interesting... O.O
Makes me wanna search about it too!!
i recently purchased a "gameboy Advance DX?' at a garage sale,and while it looks like a Gameboy Advance SP,it clearly says"gameboy Advance Dx',"aGS-001",and the words "Pre-Production" on the back.i can't find anything about it on the internet,so i was curious as to if anyone else has heard about a system like this thanks!