BlackBerry has launched company’s new feed-based social networking service BBM Channels for BlackBerry users, the service is going mainstream now. The service is now available to all BlackBerry users. Users with BlackBerry 10 and classic BlackBerry OS devices can use the service on their smartphones.

Android and iOS users will have to wait to get their chance with BBM channels. According to BlackBerry the Channels support for these platforms is arriving in the “coming months.”
[Source]