After all the ruckus recently about the Dolphin Emulator for Wii and GameCube coming to Steam, and then being blocked - the team has now given up with the Steam release.
And to all the armchair lawyers out there, the letter to Valve did not make any claims that we were violating a US copyright by including the Wii Common Key, as a short string of entirely random letters and numbers generated by a machine is not copyrightable under current US copyright law. If that ever changes, the world will be far too busy to think about emulation.
Sounds like they have no intention to: