If you're a T-Mobile customer come 2013, you may want to think long and hard before picking up a new device. While speaking at Deutsche Telekom's annual investor conference, T-Mobile CEO John Legere said that in 2013, T-Mobile will eliminate their Classic rate plan (that includes device subsidies) and opt for a new Value plan instead. Typically carriers offer plans will built-in subsidies to offset the cost of a device. With the Value plan, customers "will be able to pay an upfront fee for their devices and then pay the balance of the device in affordable monthly installments". So if you're looking to T-Mobile for a BlackBerry 10 device after launch, this may be something to ponder.