Please note that this review and my low marks for this application pertain only to users who attempt to use The Missing Sync with a BlackBerry 8300 series (the "Curve").

This is a very easy to use, helpful application. Unlike PocketMac, which is free but makes you guess at what went wrong when data does not sync, the sync log for The Missing Sync is accessible and understandable.

However -- and this is a big however -- do not attempt to use this application with a BlackBerry Curve. This is one of those times when it pays to read the "readme" file before installing. The Missing Sync does not support the BlackBerry Curve . If you merrily disregard this warning and go ahead you will come to grief.

The calendar synchronization was flawless, something that is not always the case with PocketMac.

However The Missing Synch could not handle my 887 contacts. My first clue that something might be wrong was when it took more than two hours to do a "write over" synch of about 580 contacts from my Apple Address Book. It is true that the Missing Sync did have to add some fields to the BlackBerry's woefully inadequate database, but the time was still excessive.

The Missing Sync completely corrupted the contacts data on the BlackBerry, mismatching names and e-mail addresses, for example. When I rebooted my BlackBerry all but one contact was erased (and the lone survivor was duplicate eight times.)

The uninstall application removes only the application, but none of the application support files.