u know when u have EDGE vs edge. EDGE means u get voice & data. edge just mean u can only get voice, and no data. what about for 3g? are there such thing as 3G and 3g? or if u get 3G, it mean u will get both voice & data no matter what? this is on t-mo network that i'm asking. any1 here ever experience 3g or 3G?