I have a user who is reporting that he has 8 calendars for the same Exchange account on the device(Droid X running 2.2.1), how ever in the users OWA and Outlook there is only the one Calendar listed. When he gets his event reminders he get 4 reminders for the same event. He has cleared out all Exchange information and set the device back to factory default, when he recreates the account the 8 calendars show up again, yet the OWA and Outlook only show the 1 calendar. I have tested his account on my own personal Droid X(Granted mine is rooted, its still running the OTA updates, at 2.2.1) and I can reproduce the issue on my device. The issue was tested on our office test device(HTC Evo) and only one calendar showed up. The issue has also been tested on my coworkers HTC Hero running 2.1, again, only one calendar shows up on that device.