I think i'm finally starting to understand this stuff, but if some one would attempt to answer these for me i'd be greatful.
Thanks
ps- please be kind on the tech words, think idiots guide to.....
What is a NAND backup? guessing backing up the system on a computer?
You cannot do a nand back up because you a not fully rooted, look to the rooting guides for info on that
Accessing the system this way can you open wireless/USB tethering?
Yes
What do you do to improve battery life? currently i get 8 hrs very little use, 6 hrs moderate use, 3-4 hrs heavy use.
Removing the bloat wont help your battery that much. To do that fully root it, install a custom rom and underclock while the screen is off.
What apps should not be removed? i'm wanting to remove the junk, nascar, nova, amazon mp3/kindle, blockbuster, stocks, basically the stuff i have no interest in, and don't seem to be operating system apps.
You can remove all those you listed, and alot more. If youre gun shy about deleting something, just ask on this thread and ill yay or nay it