Found an interesting article on
Gamespot that I thought I'd share here. I believe this was the panel Sucker Punch held at PAX. :D
A lot of this was covered in the
inFAMOUS developer blog on IGN. (there is game spoilers there, if anyone here hasn't completed the game (BUT YOU SHOULD HAVE >:UU))
I found it interesting none-the-less though. :D