The REAL surprise:
Portal has been secretly reporting back to its creators, how long each player took to complete the game. The 32 best players have been abducted and forcibly enrolled into Valve's real life Aperture Science super-soldier programme. All the governments of the world will tremble at the sound of their marching heel springs. And then there will be cake.
EDIT: Or it could be...
As part of a required test protocol, our previous statement suggesting that we would not be announcing Portal 2 at E3 was an outright fabrication. Good job. As part of a required test protocol, we will stop enhancing the truth in three, two,