I just got my new Samsung Charge this weekend and have successfully connected it to my company's Exchange Server. My contacts and e-mail sync appropriately, but I cannot get the calendar to sync. Calendar sync is enabled in the account settings. I have uninstalled the account and then installed it again to no avail. Rebooting the phone doesn't help either. Our tech support folks noted this phone uses a Samsung calendar application instead of the normal DROID calendar application present on other brands of phones. I haven't had any luck searching the forums on this issue other than a couple of similar complaints.