Full retail is $489. Early upgrade is $199. New every 2 upgrade is $149 (New every 2 receives a $50 additional discount on any phone).

Early upgrade is 10 months into a 1 year contract, 20 months into a 2 year contract.

Upgrades require contract extensions.

Existing customers qualified only for the full retail still can't see the offering on the web site as an "upgrade", only as a new line. I don't know if that's an error or intentional. The CS reps seem to be clueless.