Silent Call in Nexus One
I have encountered one major problem with nexus one. The issue is silent calls.
When dial a number I cannot hear ringing, when answered by the called number, they cannot hear me and i cannot hear them. This problem dose not occurs all the time but when it dose, it will continue to occur until you dial another number and redial previous number, which seem to fix the problem. Then same problem can happen when you dial next time. I have not encountered any other issues.
I have called HTC in UK regarding this problem. HTC agree to replace the phone. I think HTC has excellent customer service for Nexus one in U.K. Downside of HTC is they will pick the phone and then send you replacement five working days later.