[Amatenshi]

Not sharing? NOPE. There's actually a preliminary PS3 emulator called rpcs3, which is capable of homebrew testing right now. There's also Xenia, an Xbox 360 emulator that's in the preliminary phases as well (Some XBLA Frogger game was running at 25% speed or something a while back). The 3DS still hasn't been hacked inside out, which is pretty much required to start making a proper emulator of it. It'll be a while.