I also have all contacts and calendar synced to Outlook, my preferred mode since this is the info most important to me. (And now also synced to gmail using CompanionLink.)
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Personal: iPhone on AT&T
Work: BB 9650 on Sprint
BES is the ultimate. It's like a constantly running backup app, always functioning in the background.
For us BIS users, Desktop Manager, both for Mac and PC, is probably the easiest in terms of both backup and restore. It's quick too. You can use it without MS Outlook if you choose.
You should try out mIQ! Syncs contacts, calendar, uploads texts and call logs, and media OTA. Plus it's free
miqlive dot com
__________________ mIQ: Free Mobile Phone Backup, Contact and Calendar Sync, Web Text Messaging, Photo & Video Uploads, and Connection to your Social Networks