How Google Nexus 7 with mobile data changes connected tablets | TechHive

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"In this always on, always-connected world, it's increasingly difficult to give up mobile broadband while traveling, even when overseas. The beauty of GSM networks and the SIM card has always been the relative universality of the networks, and the interchangeable nature of SIM cards. Granted, some regions don't use GSM; and to enjoy this flexibility, one needs to have a phone or tablet that's "unlocked"—meaning, not tied to a carrier. Until now, all of the tablets shipped with mobile data in the U.S. were tied to a carrier. The Google Nexus 7 with WiFi + Mobile Data breaks free of that paradigm, and in so doing literally opens up the world for those on-the-go."

How Google Nexus 7 with mobile data changes connected tablets | TechHive