Could anyone tell me about their experience with Sprint in Denver, CO. I'm thinking of switching over to Sprint from Verizon to save about $30/month. But if the Sprint network is no good, I'm not going to make the switch. I'm looking to know how the voice service is (dropped calls/coverage) and how the data network is (do you get 3G coverage) in Denver, the surrounding city areas, and the mountains. For me coverage in the mountains is very important because I'm up there all the time. Also, can anyone tell me about tethering with Spring? Thanks!