bbm meets snapchat
Before iMessage, there was BBM. The blackberry-to-blackberry messaging system that pretty much died as soon as iMessage was born. Blackberry is resurrecting and finally catching up with the times with its new features that allow BBM users to either retract a sent message or set a timer to "self-destruct" their message (or nude pics), similar to Snapchat. It's funny to think that a smartphone, whose primary target is the business professional, is enabling features only the worst business professional would use (e.g. retracting the inappropriate message wrongly sent to your boss or erasing evidence of the confidential documents sent to your peer).
Don't worry iPhone users, we should likely see these features in the next iOS update.