Everything you need to know about BlackBerry Messenger (BBM) for iPhone
BlackBerry Messenger (BBM) used to be exclusive to BlackBerry devices. No longer. Now it's the era of BBM for everyone, and that means whether you're on Wall Street or just hanging at home, on BlackBerry or an iPhone or an Android phone, you can be on BBM. Same "read" state. Same emoticons. Same groups. And more coming all the time!