Via Lifehacker:
Downloads: iDrive Lite Backs Up Your iPhone Contacts for Free
[URL="http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=295113646&mt=8&at=10l3Vy]iDrive Lite[/URL] (iTunes Link)
iPhone only: A bad sync, or a few clumsy finger swipes, can leave you with missing, duplicate, or otherwise messed-up iPhone contacts. iDrive Lite is a free app that stores contacts in the cloud.
It's a simple app that exports your contacts to a space at the previously reviews iDrive, a web-based file storage site. Hit "backup" to upload, "Restore" to download, and "Share" to share a contact or two via SMS. It doesn't seem to actually require an account with iDrive to backup, and I had a hard time finding details of what format the backups take. Still, for skipping the bill from MobileMe or anyone lacking an Exchange server link, iDrive Lite might provide free peace of mind. It's free to download, requires an iPhone running at least 2.0 software, and doesn't require a sign-up.
Downloads: iDrive Lite Backs Up Your iPhone Contacts for Free
[URL="http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=295113646&mt=8&at=10l3Vy]iDrive Lite[/URL] (iTunes Link)
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