I am currently using a BB Curve. I have both my personal and work email set up through BIS (BlackBerry Internet Server). My work email is hosted through Exchange 2003 - but with my BB I am NOT connected via the Enterprise Exchange Server, I set it up as POP just like my personal email. After spending 2 hours at the Apple store, I cannot seem to get it to work on the iphone. Am I doing something wrong, or does anyone have any tips? I even called my corporate help desk to ensure I had the incoming/outgoing mail servers correct. If I have to wait for exchange support in June that is ok, but my question for that is are companies going to have to do something specific (kind of like BB Enterprise) to allow iphones to work?