Oh holy frikken Jesus, after having numerous poor quality calls today despite "5 bars" of signal I now call the girlfriend up only to find out I can't hear her - the reason? My ear touched the "mute" button - I've heard people saying the proximity sensor is crap and now I experience it for myself... That seals it, phone goes back next week - HTC Desire it is. My 3G did everything I wanted it to, this phone has unfortunately been crap as a phone though great with the "toys", Steve got his priorities wrong.
I'm with you buddy, proximity sensor, reception issues, I'm gonna hold out for the Droid X on Verizon.