For the first time in its nearly five-year history, the iPhone will soon be available as a prepaid device. Cricket Wireless has announced that it will begin carrying the iPhone 4s on June 22, and Boost Mobile will reportedly get the phone in September.

Cricket will sell the 16 GB iPhone 4s for $499 and the 8 GB iPhone 4 for $399. Both phones will be available with the carrier's $55 per month talk, text and Internet plan.

Boost isn't yet confirmed to be getting the iPhone, but a "trusted source" tells TechnoBuffalo that the prepaid carrier, which is owned by Sprint, is getting a similar deal to Crickets and will begin offering the phone in September.

By entering the prepaid market, Apple signals its willingness to compromise in order to reach untapped markets and maintain an edge against its competitors.

[via CNET]