N4G member "thewho" just finished the PS3 version of Bioshock and once unlocked, in the extras menu, there is a 15 second trailer for the sequel.
Confirmed title is Bioshock 2: Sea of Dreams. The trailer shows a grown up little sister holding a big daddy plush toy, while buildings in the form of Rapture rise from the sand. It's set on the Atlantic Coast.
had a few people asking about how i got the trailer;
i got the game on wednesday night, finished it on thursday afternoon. was around 8 hours (i think) playtime on medium.
i didn't play the game on pc/360 so i thought the ps3 version was pretty cool. had a fair bit of graphical problems (lots of low res textures and frame rate dropping to ~5-10 a few times and the really annoying white borders in some scenes), but apart from a few things the game is pretty awesome and highly recommended if you haven't already played it on pc360. the graphical things should be fixed up in the patch.
(i would have posted this on neogaf first, but like many others ive been stuck in the fucking pending membership for 9 months).