i guess im confused with these 2...im new at this and am trying to learn and its making me love this site and my droid all over again. i watched the videos and got my droid to the smoked glass 4.5. i love it but it hasnt itched my scratch yet. i want wifi tethering and live wallpapers. im reading that some of these ROMS have them. anyone know which one has both of these? and what is the difference between a nandroid backup and an update.zip? sorry if these are very noob questions. any help in appreciated guys!