Wasn't expecting my beta key for another week but it seems IGN is sending them out early.  They also now have a way to get your own here.  The closed beta is currently exclusive to PS3 owners, with PC opening up sometime in December and going public (PC, Xbox 360 and PS3) in January.  The game is expected to hit March 2nd.  Last night, immediately after I got my code and downloaded the beta EA was still setting up servers so I jumped into some Modern Warfare 2 and four hours later, exhausted, I only loaded up to see if it was up yet.  We're golden.  I'll definitely be hitting it up later tonight.  There's only one map included with 4 different game types, but knowing how much of a blast I had with Battlefield 1943 and it's 3 maps I'm ecstatic.