The multiplayer beta of the extremely anticipated Uncharted 3: Drake's Deception is live. If you are either an owner of Infamous 2 or a subscriber of PSN+ (everyone should be thanks to the welcome back program) you can participate in the beta now.  
If you don't fall into either of these categories, the beta goes live for everyone on July 5th. The beta runs until July 13th and includes two maps, Airfield and Chateau, and features five different modes including deathmatch, co-op arena and free for all.
Look for Uncharted 3 to be released some time in early September, only on the PS3.