If you didn't get a chance to play the highly exciting Uncharted 2 Multiplayer closed Beta, don't fret, because Naughty dog is re-launching the beta starting today 08/19/2009. To get access you only need to..
According to GameStop's Uncharted 2 Voucher, the beta was supposed to start 08-19-2009 and end on 09-19-2009. However after contacting Sony, and GameStop the beta has been shorted & delayed. The new start date is September 15, and ends on 09-29-2009. sorry for the confusion.