ContributorNetwork – Very few wireless carriers in the U.S. still offer unlimited data plans, especially after AT&T and Verizon stopped. There are T-Mobile and Sprint, but T-Mobile throttles your connection speed after a couple of gigabytes, and Sprint’s plan costs $79 per month. A handful of contract-free carriers offer unlimited data, but you have to pay the full cost of your phone upfront, and none of them is as good as the iPhone or Galaxy Nexus.