Originally Posted by unclefester
Actually, if you have the unlimited messaging for families, like me, that service includes unlimited text messages AND unlimited instant messages. So if you have an unlimited text plan that includes instant messaging, you dont need a blackberry specific data plan to use it.
Actually, you do. The AIM app installed on the BlackBerry devices goes over the data network and does not use SMS as its transport medium like older BlackBerry devices or other dumbphones.