Thorsten Heins just broke what has to be the biggest news out of BBLive this morning: BBM is breaking out of its walled garden. Starting this summer, users running iOS 6 and Android ICS or higher will be able to download the BBM app for free and join in the messaging experience so highly curated by BlackBerry. Initially, however, only the messaging and group features will be accessible for outside users, but throughout the year, the company hopes to add BBM voice, BBM channels, screen sharing and video capabilities. You'll have to hold tight for a more specific launch date, as Heins didn't announce any concrete
