s.a. http://forum.xda-developers.com/showthread.php?t=2011811
Back In Time is a simple backup tool for Linux inspired from “flyback project†and “TimeVaultâ€. The backup is done by taking snapshots of a specified set of directories.
Some of the apps that come with your phone can be safely removed without causing stability issues. They take up space and use resources that could be used for other things. Removing unwanted apps will theoretically make your phone run faster and smoother, plus, you can configure your phone just the way you want it.
Camlistore is: a way to store, sync, share, model and back up content a work in progress Open Source (Apache licensed)
Apple's Time Machine is a great feature in their OS, and Linux has almost all of the required technology already built in to recreate it. This is a simple GUI to make it easy to use.