Pentagon Expects to Enlist Apple, Samsung Devices - WSJ.com

Following the leaders

"The U.S. Department of Defense expects in coming weeks to grant two separate security approvals for Samsung's Galaxy smartphones, along with iPhones and iPads running Apple's latest operating system—moves that would boost the number of U.S. government agencies allowed to use those devices.
[...]
Still, the approvals are among a handful considered to be the gold standard in communications security. Passing muster at the Pentagon can go a long way in making other security-minded customers—such as bankers and lawyers—feel more comfortable using the devices."

Pentagon Expects to Enlist Apple, Samsung Devices - WSJ.com