<http://schema.org/description>
"iPhone owners may soon have an easier way to determine whether a friend is available to take a call, as a new Apple patent describes a system in which devices automatically send out IM-style system status information that can be viewed dynamically by other users."^^<http://www.w3.org/2001/XMLSchema#string>
<http://appleinsider.com/articles/15/04/14/future-iphones-might-automatically-broadcast-im-style-operating-status-data-to-contacts->