SCEA: “An Electrifying Announcement Will Be Revealed on 4-27-09”

Sony Computer Entertainment America is teasing a new and “electrifying” announcement on their official site. The announcement is teased with fading image of inFAMOUS and Uncharted 2: Among Thieves, both exclusively in development for the PlayStation 3.

So could this announcement be playable demos for each game or something completely bigger? Then, again an inFAMOUS demo was already announced (as pointed out by the first commenter). I wonder what could be so “electrifying”.