I've got it preloaded

. It's been killing me waiting all week. I'm so used to being spoiled by the gaming industry releasing games on Tuesday for NA this waiting till Friday thing is brutal.
I am mostly interested in the SP, hoping the new devs retain the quality that rocksteady has established but we'll see.
I'm still a little hesitant about the multiplayer. When I first heard it was getting one I was sort of hoping they were going to do a drop in drop out co op. Have the ability to have someone join your game and play as Robin and help you out with the main story or just generally run around the city "fighting crime."
I suppose tough a competitive mode will be OK though. It certainly sounds interesting. Two gangs fight each other, I assume fps style, and then you have two heroes who are just there to stop it. Sounds like Splinter Cells MP, which I enjoyed, with an added element of having two merc teams instead of just one vs the spies.
Depending on how well the game handles cross-Atlantic lag we should definitely try a few rounds some time.