A thread on the Electronic Arts UK Community Forums discusses widescreen support for Battlefield Bad Company 2, since DICE earned a 2008 Narrow Minded Award from the Wide Screen Gaming Forums for their shortcomings in this regard (thanks PC Games Hardware). One reply from DICE says "Yes it will be supported, the game is widescreen on the consoles," and a later post adds: "We support Eyefinity and with a wider FOV, although the integration isn't fully done & tested just yet." That subsequent post indicates they don't consider it an unfair advantage playing the military shooter sequel using multiple monitors under ATI's Eyefinity:

I don't think it will be unfair in MP, saying it would be would be the same as saying it would be unfair for someone to have a really high mouse precision so he can run and super-quickly turn around and as such see everything that is going on around him. But that is obviously something we all accept.

We have to do more testing and see how it turns out, but I'm not worried.