http://www.technobuffalo.com/companies/apple/iphone/att-reportedly-unlocking-on-contract-iphones-for-deployed-service-members/
Most of us have heard that AT&T is unlocking iPhones of those who have fulfilled their contract with AT&T http://www.usatoday.com/tech/products/story/2012-04-09/unlock-ATT-iphone/54125676/1 but now, in a patriotic move, AT&T is unlocking iPhones for Soldiers who are deployed so they can use their iPhone on local networks while they are deployed.
Many Soldiers end up buying a cheap cellphone to use while they are deployed, but if they have an unlocked iPhone, they can pop in a local prepaid SIM and use the iPhone instead. This will, no doubt, inspire loyalty to AT&T from the troops.