KnowRoaming opens preorders for a SIM card sticker that connects travelers to local cell networks. But there is a small catch. Freelance writer Amanda C. Kooser covers gadgets and tech news with a ...

Thanks in no small part to T-Mobile's free global data initiative, US carriers have begun to lighten the fee load when it comes time to roam. But you'll still pay an arm and a leg in many countries, ...