I'm gonna take the plunge to the unlimited/100 min plan. I read that my note 2 is an international phone. Do I need to get it unlocked or can I just pop in the SIM card from the start up plan and go? Also, I read that once I port my number to t-mo, I can then port it to Google voice instead of them issuing me another number. Has anyone done that? I'm wanna try using voip instead using the minutes on the plan.