I currently have T-mobile and I will be travelling out of state, I am thinking about either adding a data plan to my phone to tether on my laptop, or getting an ulimited mobile data plan with Vrigin mobile...I did not mention the other carriers because I noticed they are more expensive, or they put you on a contract, and you are also limited to data usage. I am trying to go the cheap way out with at least 3g connection and I would like to have some input which would be the better option, or is their another option that I do not know about?