Cricket Wireless, the prepaid subsidiary of Leap, has just announced the availability of the iPhone 4 and 4S on its network. A 16GB 4S will set you back $500, while an 8GB 4 clocks in at a slightly more affordable $400. Both are available with Cricket's $55 "unlimited" everything plan, which includes all you can eat talk, text, and data -- provided your idea of "unlimited" data falls within its fair usage policies (in this case, 2.3GB of data). Cricket is hardly alone among America's smaller carriers in offering the iPhone,
