The US branch of Virgin Mobile is now offering a 15 percent discount on the iPhone 4 and 4S
. The promotion is applicable only to web orders, and will last only for a limited time, or until supplies run out. Virgin hasn't said when the sale is scheduled to end.
A number of US carriers
have been running iPhone discounts in recent weeks. These include the likes of Sprint, T-Mobile, and Verizon, but in general such deals have focused on the iPhone 5. Virgin may be intensifying efforts to pull people away from rivals; it is, for instance, offering a $100 credit to people willing to switch away from T-Mobile.