BBM, which was previously exclusive to Blackberry, is coming to the iPhone on September 22nd. It offers a private and controlled way to communicate with contacts in seconds, and it always lets you know when messages are delivered and have been read. Better yet, through BBM chat you'll be able to see when friends are responding to your messages.
“BBM is a very engaging messaging service that is simple to use, easy to personalize and has an immediacy that is necessary for mobile communications,” said Andrew Bocking, Executive Vice President for BBM at BlackBerry, in a press release. “With more than a billion Android, iOS, and BlackBerry smartphones in the market, and no dominant mobile messaging platform, this is absolutely the right time to bring BBM to Android and iPhone customers.”