Sprint is now giving a $100 pre-paid gift card to new iPhone 4S buyers, and Business Insider has confirmed that Apple will be matching the deal by offering an Apple Store credit for the same amount.

The new incentive, the second in as many weeks from Sprint, comes ahead of an expected Sept. 12 launch of the next-generation iPhone and has prompted Apple to make good on its promise to match iPhone pricing from major resellers, Business Insider has learned.

Sprint last week slashed the price of Apple's iPhone 4S to $149 not including a $36 activation fee waiver, a move followed by other sellers including Target and Best Buy. Apple subsequently instructed its stores to match the discount prices being offered by the major retailers, limited to $49 for the iPhone 4 and $149 for the iPhone 4S.