Hi, just wondering do you have your settings set to ring and vibrate or just ring when you get a new call ?
if you do use both ring and vibrate does it drain the battery faster than just ring ?
I use both, just 'cause. The vibrate is the strongest on any phone I've ever had; there've been times when I was in an extremely noisy environment (concert, directly in front of the front speakers), and I could still feel the vibrate in my arm when the phone was inside a heavily-padded camera bag.
I use only vibrate, I always feel it, and that way I don't have to worry about my phone ringing in inappropriate situations. (Lectures, Meetings, Movies, Funerals, whatnot)