Also, would I have to cut my SIM card? I want an unlocked iPhone but I need to know if it will even work with this prepaid plan first. It is still T-Mobile, I'm using the Sidekick 4G right now. I only want answers from people that have experience, i.e. someone who has done this or similr before. And please answer the SIM card question. Thank you! 10 points.. Best answer.