s.a. http://forum.xda-developers.com/showthread.php?t=2011811
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.
TEBE is a backup extension for the Mozilla Thunderbird email client. It is functionally very similar to the Firefox FEBE backup extension.
Camlistore is: a way to store, sync, share, model and back up content a work in progress Open Source (Apache licensed)
automates the process of creating an rdiff-backup or rsync backup
Tartarus provides a nice wrapper around basic Unix tools such as tar, find and curl (well, that's not that basic) to provide a seamless backup solution, aimed at automatic gathering and backup. It has the ability to do full as well as incremental backups