SS2 has been begging for a sequel since it came out (it being the scariest - most intelligent RPG/FPS ever). I'm really looking forward to this, and the references to past classics like bioforge, deus ex and even ultima have got me slobbering like a teenage fanboy. I'm chuffed to bits that the controversy over who owned what licence-wise (EA or Irrational) hasn't killed off this property - and that it will live on - albeit in spirit. I recently had to curtail my involvement with an SS2 style mod for Doom 3 called Sapphire Scar ('cos I just couldn't find the time)but I know a lot of people will be shocked, surprised and amazed that Bioshock is coming. Bring it on.
Old enough to know better, young enough not to care.