Today is Pong's 40th Anniversary. Atari is celebrating it's most historic title with a new mobile game called Pong World and a contest for a Atari 2600-themed Xbox 360.

Pong World just released, and it looks like a fun little update to the arcade classic. And it's free! Check out the trailer:

Atari is also running a contest where one luck winner will win a one-of-a-kind Xbox 360 modded to look like an old school Atari 2600 complete with an attached LCD Screen. Check out an image below, and enter to win the system here