I am thinking about upgrading to the 8300 series but it says that it does not have wireless calendar capabilities. I currently have corporate blackberry server which automatically syncs pretty much everything to and from my desktop Outlook. Will I lose that if I switch?
If you connect your 83xx device to the BlackBerry Enterprise Server you will be able to wireless sync that information. Devices not connected to Enterprise Servers won't have the wireless calendar capabilities, but devices that are connected should be fine. The Curve should work just fine after it is added.