I thought the same
Looks great and I've always wanted a game like this. However, perversly, whenever I've played games where elements such as these are involved (a very crude example being tailing someone in AC), I've found those parts boring. Yeah, bit weird on my part.
I guess I want to be detective, finding out all kinds of shit and solving shit in a shit city. But not LA Confidential style, actually finding shit out myself and solving that shit.
Speaking of which, on a side note, this is what I wanted in a Batman game. Vast city, find scum/criminals, take down said scum, but Batman style.
Edit: of course I meant LA Noire, not Confidential