I have a Verizon Wireless 64 gb iPad 3 with wifi and Verizon 4G. It has been unlocked so I am currently using a metroPCS SIM card, which works, but I can only receive 3G data. I'm wondering if I jailbreak it, if I will be able to change anything and be able to use it as a GSM SIM card instead of a CDMA. Or would it be better to just get a GSM iPad?