I live in Brooklyn NY and I have to say the 4G is amazing put my son Evo 4G to shame because he can't even use it he gets no connection smh. My phone does not switch from 3G to 4G I guess because the 4G is so strong where I live. Do people manually switch? IF so how? I don't have a problem with battery life and the 4G i guess its because I am still getting used to the phone and don't really know what I'm doing lol. Just wanted to share the news. Thunderbolt and 4G FTW!!