Apple's online store has been updated with the latest product line up and is taking pre-orders for the iPhone 4S that was announced on October 4 and will start selling on October 14. All US carrier variants are now available for pre-orders and will retail at $199, $299 and $399 respectively for the 16GB, 32GB and 64GB. The phone will come with a 2 year contract with AT&T, Verizon and Sprint. This is standard for all iPhones sold in the US.
Pre-orders for the unlocked iPhone 4S have also begun, though no mention of this was made at the Apple keynote. These versions will be available for $649, $749 and $849 respectively for the 16GB, 32GB and 64GB variants.
However, the unlocked versions will only ship in November. Apple has not specified an exact date.