This should be quite simple to answer. Read this blog: http://www.androidcentral.com/bbm-has-annoying-persistent-notification-you-might-not-want-turn-it
What is this icon? Why is it persistent? How could they implement a similar solution without this icon?
How GCM could solve this issue?
What is this icon? Why is it persistent? How could they implement a similar solution without this icon?
How GCM could solve this issue?