Finally got the cash to buy this game and now it's a throwup between either PS3 or 360. 
 
I have a gold sub on 360, so I can play online on both however I don't have a friendslist on either, so that isn't a concern. I'm in New Zealand also, so if any NZ Bombers with Brotherhood (or not) wanting to friend up feel free to add me (Scapegoat NZ on 360, ScapegoatNZ on PSN). 
 
Basically I was wondering what the day one exclusive PS3 DLC actually contains. I know that it adds more side missions, but are these simply MORE versions of missions already present in the game, or brand new mission types that are not in the game? Are they wrapped up in any kind of story with voice work? 

 Well, its a small story with Copernicus where he talks some philosophical mumbo jumbo. Its made so that all his missions are connected story-wise, but the mission types is basically protection and letter delivering. The latter is within a certain time. It's a little cool, but not necessarily what should make you go from one console to another. I'd say buy it for the console you most prefer (controls, etc). And it may be relevant to mention that the PS3 version has some screen tearing, but I don't know if that is completely gone from the 360-version or not. I suggest you google that if you think its important.    

See this thread 
 
http://www.giantbomb.com/assassins-creed-brotherhood/61-31001/get-it-for-xbox-360-or-playstation-3/35-466587/#21