Two weeks ago, Samsung devices running the Knox security layer and BlackBerry devices including the BlackBerry 10 smartphones and PlayBook tablets were given the nod by the US military. Adding Apple's iOS devices to the mix was part of the platform agnostic plans of the Pentagon revealed in February. Those plans detailed adding wireless voice, video and data capabilities for classified and unclassified communications by October of 2013. The approved devices will begin to be used more widely in the military and intelligence communities late in 2013 or in early 2014.
iPhones and iPads already have a home in some parts of the government that don't require such strict security, but the new Pentagon certification should make for more widespread adoption of iOS.