A few weeks ago a couple images surfaced online that showed BlackBerry Messenger (BBM) ported to an Android device. This quickly spurred on rumours that RIM was possibly getting ready to make the popular messaging service available on other platforms, but unfortunately the app that was “certainly in development” is just a rumour. During the BlackBerry DevCon in San Fransisco, Christopher Smith, Senior Director of BlackBerry Development Platform, went on record and stated that “there were no plans for it” to ever be available on any other OS. Hopefully it stays this way. BBM is one of RIM’s prize possessions and yesterday at the keynote it was revealed that subscribers increased from 28 million users to 50 million in one year.