I am doubtful if it would work, but still wanted to ask here to confirm. I am getting Skyrocket from craigslist at a pretty decent price. Can I use it with prepaid $50 gophone plan from AT&T? AT&T lists their $50 prepaid plan as "unlimited-data". Does anyone know what is the usage limit on this plan, if there is any? Also, would I be able to get 4G speeds on this prepaid plan, that is if this setup would work at all?