I saw this thread on gamedev.net: http://www.gamedev.net/community/forums/topic.asp?topic_id=278903 I responded, but I was wondering what everyone else thinks. I can see this being a murky issue. Summary: guy wants to get into game biz, but doesn't like the hoops he has to jump through to make a GBA game for Nintendo. He was wondering if he would be in trouble if he instead makes a game for an emulator. Basically, he is not making a game for the console itself, so Nintendo has no way of saying he needs a license. I think his main purpose is to make a game and hope it gets popular enough so he can use it as leverage to become a real developer, but I wonder about the legality of trying to actually sell games made for the emulator and not the console itself.