some body explain me k ye wifi,3g aur edge konsi services hain.in k honay ka kiya faida hay aur na ho nay ka kiya nuksan hay.ye kaisay avail ki ja sakti hain.aur in say mutalik kisi k pas koi tip ya trick ho to wo b share karay..dosto in important words k baray main detail say batana......there are many who dont know about it