Generally speaking, you'll find cell phone deals coming in two forms - first as an outright sale on an unlocked device, and secondly as part of a carrier-plan tie-in. The latter can be a bit ...
U.S. Mobile even has an Unlimited Flex plan that goes for just $15 per month when you pre-pay for 12 months. AT&T is another contender for the best unlimited phone plan deal going right now.