How to Back Up your iPhone without using iTunes.

The iPhone has a fully functional SysV-style Unix file system on it... meaning that, from Cydia, you can install an OpenSSH daemon and Terminal app for your iPhone, and then do WHATEVER you want with it. Once the Terminal is installed, you'll find that most file and network commands you'd get on the Mac are available on the iPhone. That makes it a Unix box in your pocket, meaning that you can script any damn thing you want it to do, just like you could do in the Terminal on your Mac or Linux box.

Long story short -- I'm currently using WinSCP to backup the entire filesystem on my iPhone to my laptop. As of 5 mins from now, though, I'll have the iPhone added to the network auto-backup script on my Linux box. WooHoo!!

Google for "rsync", and you'll see what I mean. :)