Last year, unlocking your phone was technically illegal and it wasn't until August 2014 that unlocking a cellphone became legal (again.) When you buy a T-Mobile phone, at full price- the phone belongs to you. T-Mobile cannot hold your phone hostage thanks to Bill 517, which allows you to change carriers as you see fit.
Here's a selection from section 2C of the bill permitting unlocking of the device:
[unlocking] may be initiated by the owner of any such handset or other device, by another person at the direction of the owner, or by a provider of a commercial mobile radio service or a commercial mobile data service at the direction of such owner or other person, solely in order to enable such owner or a family member of such owner to connect to a wireless telecommunications network
Also Adam Clark Estes from Gizmodo is reporting that the T-Mobile and Verizon's phones will be unlocked. He reminds folks, however, that an unlocked T-Mobile iPhone is not compatible with a Verizon sim bc of the CDMA technology that Verizon utilizes.
Here's a selection from section 2C of the bill permitting unlocking of the device:
[unlocking] may be initiated by the owner of any such handset or other device, by another person at the direction of the owner, or by a provider of a commercial mobile radio service or a commercial mobile data service at the direction of such owner or other person, solely in order to enable such owner or a family member of such owner to connect to a wireless telecommunications network
Also Adam Clark Estes from Gizmodo is reporting that the T-Mobile and Verizon's phones will be unlocked. He reminds folks, however, that an unlocked T-Mobile iPhone is not compatible with a Verizon sim bc of the CDMA technology that Verizon utilizes.