In the United States, it is always big news when the iPhone appears on carriers. There was a huge announcement by Verizon when they got their hands on Apple’s smart phone earlier this year. Swirling around with all the iPhone 5 rumors, we have heard talk that Apple will be offering it’s killer device to yet another American carrier this fall.

It looks like that is probably the case. The Wall Street Journal, which isn’t known for being wrong about Apple products, is reporting that Sprint will get Apple’s next iPhone at the same time that it launches on AT&T and Verizon. This will bring the world’s best selling smartphone to America’s third largest cellular carrier.

This is big news for data users, however. While AT&T and Verizon offer the ability to keep your unlimited plan when you upgrade, you cannot regain it if you lose it. Sprint, on the other hand, still offers unlimited data for a new and existing customers. This is also true unlimited data, unlike the plans offered by T-Mobile which become throttled after a certain amount of data use.

In their article, the Wall Street Journal also said that Sprint would begin selling the iPhone 5 in mid-October. This lines up with the rumored launch date I have previously reported. This also means that these potential sales will not contribute to fourth quarter profits for any carrier, as that ends in September.

Interestingly enough, Virgin Mobile, which operates under the Sprint umbrella in the States, has been working on restructuring it plans. The new plans will feature data throttling, and are set to launch in October. The obvious conclusion would be that Sprint will try to bring the iPhone to prepaid customers in the US for the first time.