Now, AT&T is offering refurbished 3GS' for just $9 with a two-year contract.
Earlier today, it was rumored that Apple would continue selling the 3GS this fall, after the next version of the iPhone is released, as a low-cost, unlocked device for $350 without a contract.
Over the past several iPhone cycles, Apple has continued to offer the prior model of the iPhone for $99 with a two-year contract. The 3G was sold with the 3GS, and the 3GS is currently paired with the iPhone 4.
Hat tip Electronista.