iPhone user for 2 years, in the UK, on O2. Never had a single dropped call or issue. I've been to the US several times, and each time I'm amazed at the unrelia

iPhone user for 2 years, in the UK, on O2. Never had a single dropped call or issue. I've been to the US several times, and each time I'm amazed at the unreliable nature of both mobile cellphone networks, and landlines :/ The infrastructure simply isn't there yet.