Looks like ScrewAttack’s source was dead on and Uncharted 2: Among Thieves indeed does have a multiplayer component. A photo of a BestBuy placeholder sent to Kotaku shows that people who pre-order Sucker Punch’s upcoming open-world action-adventurer inFamous not only get to enjoy an early demo of the game but also get a voucher (valid from June 3-28) with which they get access to a multiplayer beta of Uncharted 2.
The US PlayStation site has been teasing “an electrifying announcement” that will be revealed on the 27th, an announcement that has something to do with both inFamous and Uncharted 2, for the last few days. We’d be surprised if this isn’t it. Hopefully we’ll get some more details on the multiplayer mode(s) then and see whether or not Naughty Dog is planning on charting any new online territory.