Virgin Mobile To Launch Prepaid iPhones On June 29: $549 iPhone 4, $649 4S, “Unlimited” Data

Today, Virgin Mobile has finally put months of rumors and speculation to rest — on June 29, the prepaid Sprint subsidiary will start selling Apple’s iPhone 4 and 4S, joining Cricket as the second prepaid carrier to stock Apple’s tiny mobile juggernaut.

Virgin customers can expect to shell out $549 for the off-contract 8GB iPhone 4, and $649 for a 16B iPhone 4S. The duo of prepaid iPhones are paired with Virgin’s existing slew of Beyond Talk plans, which will set customers back $35, $45, and $55 a month for 300, 1200, and unlimited voice minutes, respectively.

All of the plans come bundled with unlimited SMS, and so-called unlimited data — like Cricket before them, users with Virgin Mobile iPhones will be able to use as much data as they want but, but data speeds will drop as they tiptoe over the 2.5GB threshold.

Unlike Leap Wireless subsidiary Cricket — who announced last month that their own prepaid iPhone would debut on June 22 — Virgin isn’t offering any price breaks on the hardware itself. Those slightly steeper price tags could mean that the devices will be a tougher sell to consumers pondering a switch to prepaid (especially considering that Virgin’s top-tier Android smartphones top out at $299), but the thing to remember is that Sprint has committed to purchasing over $15.5 billion worth of iPhones over four years.

They’re going to have gobs of devices that need to be moved anyway, so it isn’t a huge surprise to see Sprint turning to their other wireless divisions to help out. Rumors of Sprint-owned Boost Mobile getting the iPhone made the rounds not long ago as well, a move that seems more likely now that Sprint has broken their own prepaid barrier.