I am interested in leaving Verizon and my Moto DROID behind and purchasing a full price Nexus S. Since the Nexus S is carrier unlocked I should have no problem running it through a voice + text T-Mobile prepaid SIM right right? Obviously I will need to turn the data antennae off and be restricted to Wi-Fi. Has anyone done this or something similar before? Since GSM is new to our area I know very little about SIM cards. Seeing as how everyone complains about data packages being required on phones I keep thinking I'm missing something.