Thanks for the replys, Blackberries are being piloted at this point. We were using the Verizon Q Windows Mobile devices with Activesync. This device had an Outlook client on it so it was easier to maintain message and folder separation. I have two camps in my pilot group. Those who hate the all in one message view and those who love the all in one message view.
Unfortunately for me the clients who hate the all in one view are the ones who will decide weather or not to go with Blackberries.