EA's Origin Website is now offering a free copy of Battlefield 3 with preorders of Mass Effect 3, BioWare's upcoming action/RPG sequel. This seems to cover both the standard edition for all platforms and the PC-exclusive digital deluxe edition.
My guess is that it's more about convincing people to buy at the $60 price point instead of waiting for the ever-sooner deals for PC and used market for consoles.
But then again it's only on Origin so maybe the prices will stay $60 for a while.