Well finally got the game today (fucking shit postal service should have got it to me on Friday, but they are useless cunts).

Havent checked out the DVD or booklets yet, but the Batarang looks nice (until you look closer at it and see its a cheap piece of hollow plastic covered in scratches).
Not sure if this was with the standard version, or will be available later to everyone else, but there was also a redemption code in the box to get the Crime Alley challenge map (I could post the code here, but I assume each obe is unique and can be used only once).

Game itself is as good as the demo indicated, so overall, a nice little special edition.