Holy hell, It's the Dolphin Emulator! Man, I love this thing. It plays Nintendo Gamecube and Wii games at better than native speeds with enhanced graphics and sound. Just obtain an ISO of a game you already own, point the emulator to it and *BAM* instant console fun. As you can see I'm playing the original Gamecube Animal crossing in this screen shot. Complete with filtered graphics and increased resolution. For game control, Dolphin supports real Wii remotes for Wii games via bluetooth. Although I'm using it mainly for Gamecube games with a wired Xbox360 control pad. It works great. I'm so happy ^_^
Get Dolphin from their home site (mac and windows)
. Also available for Linux.
Screenshots @ 720p