[touch_rules]

With "My Backup" you can backup your current 7 home pages, not all of your different scenes.

When you follow the tutorial above, you will be installing a rooted version of the stock rom or a custom rom, your choice

I believe the differences with not full and full root are the fact that you can have a recovery file, do a nandbackup/restore, and have full adb (or command line access) to the root of the OS

Nand backup and restore is an awesome way to restore your phone back to the exact way you backed it up, as if you never put a custom rom on it or anything. It is basically an image of your drive in windows speak. Kind of like what Ghost used to do.

What you do is get your phone set up exactly the way you like it and running perfectly and then do a nand backup. Once this is done, start flashing custom roms all you want and if you want to you can always return to old faithful without any hiccups via nand restore.

Hope this helps. I'm about to dive in, I'm on my mac now.