In a note to clients — as reported by “AppleInsider” (http://www.appleinsider.com) — Jefferies analyst Peter Misek thinks the iPhone 3GS will stay in production even after the next gen iPhone is introduced this fall. He thinks the phone will remain on sale for under US$300 in developing markets where pre-paid smartphones are popular.

Misek tells clients that Apple has inked an agreement with “a leading distribution and logistics company” that will push the iPhone 3GS in prepaid markets around the world. He thinks Apple will reprice the iPhone 3GS, which currently costs $375 without a contract. He expects that the third-generation iPhone will be priced between $250 and $300, which would allow someone to buy it with no subsidy for around the cost of an on-contract iPhone 4S.