I'm currently on a 1400 minute plan with unlimited text and data. I have Droid X2 that I was going to swap pretty much for TBOLT cause I want a cheap 4G phone until my upgrade in July. There is no SIM card that comes with it. If I do this trade, do I just take the TBOLT to VZW and they give me a free SIM card? Will doing this effect my contract or will I still have unlimited data?