While travelling in the sunshine coast of Australia about 3 years ago I took my kids to a children's play center that had an arcade cabinet that played Galaga and maybe some other games, I can't remember. I figured out that it was MAME when the system rebooted and I saw the BIOS come up and a Windows desktop flashed at one point with shortcuts named something that suggested MAME, can't remember what they were exactly, but I remember being convinced it was MAME.