Roam Mobility eliminates US roaming fees by connecting you directly to its US network with a SIM card that gets you your own US roaming number -- connecting you to nationwide coverage. Once you've got your new device, you can enjoy unlimited US talk and text for seven days anytime you cross the border -- including in Hawaii and Puerto Rico. Just pick a plan based on the amount of time you'll be gone and schedule the start date (any time within the next year; date can be changed at any time). Your plan includes unlimited calling and texting in the US, free long distance calls to Canada, caller ID, and voicemail.