...service? I have a Sprint and I get a new phone this October. I was wondering could I get a Sidekick 3 of ebay or something and then switch that phone to my Sprint service and still have a cool phone.
not only are the frequencies are diffrent but t-mobile has a sim card. idk if sprint does but the phones from t-mobile will not work unless u have a sim card. if cingular has a sim card then it will only work in a t-mobile phone to make phone calls. txting and everything else will not work.