RIM has a few competitive advantages: They are the only company that provides a secure handset. Their integration with corporate email systems through BES is un

RIM has a few competitive advantages: They are the only company that provides a secure handset. Their integration with corporate email systems through BES is unrivaled. If they license their software to less trusted handsets then they lose the first. There are companies like Good that are already eroding this for IPhone users but it has a way to go. It's questionable how long they can last on the second.