My phone plans just about up and I can finally get an iPhone. My concern is the sound/volume quality and if it will be loud enough because I have hearing problems and always had issues with cells because of their bad sound levels. I have the Katana by Sanyo now and I picked it solely for it's receiver volume, I actually have to turn it down at times. So, the only thing I'm worried about with the iPhone is the sound level and if I'll be able to hear it. I've only played with a few and not long enough to form a decent opinion. Does anyone have good advice or input? Thanks in advance..