Title pretty much says it all - I got a replacement Nexus after dropping mine and quickly bought a case for it to prevent this from happening again. I went to set up my phone and for whatever reason it takes a few minutes to connect to the network...I unlock my phone to go send a text and I get the ol 'Searching for service' for a few minutes until it finally connects. Then today...while in Phoenix, my phone loses service all together and puts me into roaming! My wife has the Thunderbolt and her connection was fine all day and I can't get even get my phone to maintain a 3g signal. Is anyone else experiencing this? Or did I maybe just get a defective unit?