On June 28, Virgin Mobile is adding the iPhone 5 to the company's $30 a month "unlimited" data plan. The plan provides 2.5 GB of data downloads a month at full speed. Beyond 2.5 GB, the download speed is throttled back for the rest of the month.
The $30 a month plan includes unlimited text service, and 300 minutes of talk time. The $30 rate is available if you sign up to pay automatically each month with a credit card or bank transfer.
The Virgin Mobile prepaid plan has no contract. You can discontinue service any time.
To introduce the iPhone 5, Virgin Mobile will take $100 off the regular price. For example, an iPhone 5 with 16 GB storage will cost $550. This means your two-year cost for the iPhone 5 will be ($550 + ($30*24)) = $1270.
$1270 is not bad for a smartphone. Most smartphone plans with this large a data allowance cost more than $2000 over two years. Here's a recent article that compares plans, albeit with 4 GB of data.
http://mashable.com/2013/03/26/iphone-5-rate-plans-compared/
Virgin Mobile operates on the Sprint network. That means the iPhone will be using CDMA for 3G data most of the time. Sprint's 3G service is slow, about 3/4 the speed of Verizon, 2/3 the speed of ATT 3G and half the speed of T-Mobile's 3G, according to tests by PC Magazine.
http://www.pcmag.com/article2/0,2817,2420334,00.asp
Sprint is starting the process of rolling out LTE across the country, and the Virgin Mobile phone plans can take advantage of LTE. But there are relatively few locations where Sprint LTE is currently available. Use the following link to see if Sprint has LTE service in your area.
http://network.sprint.com/
Virgin America has a 30 day, money back guarantee for equipment you purchase from the company. This gives you the opportunity to try out the phone to confirm that Sprint's coverage and service are satisfactory in the places you typically travel.
I believe the iPhone 5 sold by Virgin Mobile will be model A1429. That's the one that works with Sprint and Verizon in USA. This model doesn't work on the ATT network.
It's worth noting that Apple is expected to introduce a new iPhone this Fall. The new phone may have a bigger screen and/or faster processor.