i use it for the soft buttons on the bottom... but then again i haven't tried turning it off... maybe i'll give it a run and see how i'm feelin about that..
I think you guys who have turned it off since the beginning should turn it back on for a day and see if you still don't want it. I gave it a second chance and was glad I did.
If it is true that it cuts 2 hours off of the battery life, then dear God leave it off. I doubt that it makes that much difference. Anyone have any concrete evidence of what the effect on battery life is?