Phone Detective

So much for "mid-September", eh? Valve announced that the first DLC
Portal 2
called "Peer Review" will be available for download on PC, PS3 and Xbox 360 on October 4.
"Peer Review"

follows the exploits of cooperation of the Atlas and P of the body, two men wanted robot Portal 2

the cooperative. GLaDOS also present the two face a new test track co- op. However, the DLC will also include a challenge mode for two players in co-operation and unique, with the full support of the leaders.

To help ease the pain of waiting for free stuff, with Valve, hey, free stuff! You can download the third and final group of songs