Now that the iPhone 4S will be available on three different US carriers, it's time to revisit data and voice plans available with each company. Aside from differences in their networks, AT&T, Verizon and now Sprint have a variety of pricing structures available to meet your mobile needs. Overall, with AT&T and Verizon offering the iPhone for some time now the two competitors have similar pricing, although Verizon offers more tiers for data and messaging.
Sprint enters the game with higher prices for single and family voice calling, however their data option is cheap and simple. A flat ten bucks every month gets you unlimited data and messaging. AT&T and Verizon charge extra for text or MMS message packages and stopped offering unlimited data plans on the iPhone long ago. It remains to be seen if Sprint's unbeatable data plan pricing can attract iPhone 4S customers looking for unlimited data.