A couple of days ago, Sony revealed on the official PlayStation Blog that they were on the verge to confirm an “electrifying announcement.” Above the blog they posted a picture of two games, inFamous and Uncharted 2: Among Thieves. They promised that this surprise announcement would take place on April 27th.

A reader over at Kotaku sent a photo of a Best Buy pre-oder boxes for inFamous that had an interesting promotion sticker on it. According to the promo, if you reserve inFamous you’ll get early access to an inFamous demo. However, you’ll also receive a voucher to participate in a multiplayer online beta test for Uncharted 2. That’s right, this sticker has pretty much guaranteed that Uncharted 2 will include some kind of online multiplayer, and we’ll be able to play it soon.

Below the Uncharted promo, it has some small print that reads; “Voucher Valid 6/3/09 – 6/28/09.” To me, this probably means the beta will happened between those dates. If that is the case, the beta will start one day after E3 begins, which is on June 2.