"Security tools
Backtrack is a Linux distribution aimed at penetration testers, it comes with a great collection of security tools and custom scripts installed. Some of the tools are only usable by very advanced users, other tools are so easy a kid can use them. I do have to say, using most of these tools on systems you don't own yourself and where you don't have permission by the owner, is likely to end you without a job or in jail.
"Ubuntu based
The latest release of backtrack, Backtrack 4 beta, is now based on Ubuntu. In my opinion this is the best choice they could have made. This makes it even easier for unexperienced users (read windows system administrators) to use it. And in the process they learn to use Linux, and they learn about the ease in which windows systems are compromised. This makes them spread the word, show management and promote Linux."
