A couple noobie ???s

[syrguy1969]

I posted this in another forum, but I have always had great luck here, so I decided to re-post it here:

I had a couple questions about the Android OS that I know will be simple for most, but I haven't found clear answers for (and a couple I haven't gotten to yet !!):

The backup assistant I have seen mentioned...is it like using SPB Backup on a WM device in that it will save a mirror image of your device (PIM info, apps, configuration.....) or something different?

I have downloaded a theme or two to see what they look like and I was wondering if creating a custom theme is as easy as changing the images found in a downloaded one and saving it to the Incredible (would love to make a Doctor Who theme), or if it needs to be rooted or something (If there is a self-skinning instructional post/thread that would be GREAT!!!)?

Is it true the new OS (2.1 I think) allows the lock screen to use different gestured (AKA...side-to-side) to unlock, change ringer/mute function....?

They are the questions I am dwelling on at the moment, I am sure I will think of more though!!! Thanks for now