Alongside the Skyrim Creation Kit and the HD Texture Pack that was officially released last night, Valve added their own little addition to Skyrim: Fall of The Space Corp, Vol. 1 adds Portal 2's jittery little Space Core to the Nord world, voiced by the man that holds the patent on all gaming voiceovers, Nolan North. It's both proof that clicking things in Skyrim's Steam Workshop works just like they said it would, and that Valve's punmasters are missed a trick by not calling him Nolan Nord. When you add the mod to the game, you need to find him. Here's a video I made that shows you how.
He's west of Whiterun, just a little bit to the north of tower where you fight the dragon. Walk along that road and you'll hear a large crack of thunder and the core will plummet into a burned out house nearby. He's not a companion, he just sits in your inventory and chats in space gibber whenever you click him.
Does this mean Portal 2 is now part of Skyrim's canon?