Valve has announced that Portal 2 will be coming to the PlayStation 3 simultaneously with the PC, Mac and 360 versions in 2011 (that is the official logo up there by the way). This was the surprise the internet has been buzzing about for a while. The PS3 version of the game is the only console version to include Steamworks, and includes stuff like Steam Cloud, automatic updates, community features and downloadable content.

“When the PlayStation 3 was introduced, I was the one of the platform’s biggest critics,” said Gabe Newell, president and co-founder of Valve. “However, Sony Computer Entertainment has proved that the PlayStation 3 is the most open platform of all the current generation consoles and has worked extremely hard to make the platform the most desirable for consumers and developers. As such, we are delighted to announce Portal 2 for the PlayStation 3 and believe the Steamworks support included will make it the best console version of the game.”

Here’s the first teaser trailer of the game (GLaDOS does not sound happy to see you):