BlackBerry has launched BBM Channels, a rather Twitter-like social network that runs on its BBM messaging system. Meanwhile the company had good news in the developing world: it is the second most popular phone in South Africa. From the article: 'The update is available for BBM users on BlackBerry 10 and some older BlackBerry smartphones, but it is promised that support will be added for iPhone and Android soon, with users of those platforms able to access the web version if they have a confirmed BlackBerry ID email address.