First of all I hope this is the right forum for my question.
At the moment my brother is in NYC and he has his Galaxy S III with him, but with his German SIM-card.
He will stay there until christmas and would like to have an American data-plan. Can you recommend a plan and a carrier? He doesn't need to phone and messaging isn't important, but he needs internet, Whatsapp etc. And he shouldn't have to pay for it after leaving the US.
Thanks in advance!