Portal 2 ending leaked! Watch it right now on YouTube!

The ending to Portal 2's single player seems to have been leaked and put up on YouTube! Go on over and watch it right now! I have the video embedded below, though, so you don't have to leave and go find it! Have fun watching it, but i don't know if you should really go and spoil it all for yourself...

http://spn.tw/r5cP2