<http://schema.org/headline>
"Imo rolls out free voice calling for iOS users, hopes you'll use it to talk about free voice calling"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2012/08/13/imo-rolls-out-free-voice-calling-for-ios-users-hopes-youll-use/?ncid=rss_semi>