During a Q&A session, we had the opportunity to speak with BlackBerry VP of Developer Relations Alec Saunders. In regards our questions regarding the longevity of legacy BlackBerry OS and developer support for the platform, we learned that the current to market BlackBerry 9720 smartphone is the last device to support legacy OS.
Interestingly, BlackBerry OS has seen nearly double the apps even since the BlackBerry 10 launch. However, the 9720 will be the last iteration of BlackBerry 7. Developers will still be able to develop for the BlackBerry 7 platform, but in terms of its continued support by BlackBerry, that much is still left unknown.