The switch on Sony's "electrifying announcement" may have just been flipped, as a Best Buy pre-order box for inFamous reveals the existence of a multiplayer beta test for Uncharted 2.

Yesterday Sony began teasing "an electrifying announcement" to take place on April 27th regarding both Sucker Punch's inFamous and Naughty Dog's Uncharted 2: Among Thieves. Today a reader sent us this photo of a batch of newly opened Best Buy pre-order placeholder boxes for inFamous, which indicate that not only do pre-orders score players early access to the inFamous demo, they also receive a voucher for entry into the multiplayer beta test for Uncharted 2.

They key word here is multiplayer. Announcing that the sequel to one of the best single-player games on the PlayStation 3 is adding a multiplayer component certainly qualifies as electrifying. I'm certain we'll hear much more on this come April 27th.

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