Originally Posted By: hybrid8
Mandatory unlocking provisions already exist in many countries. I thought they existed in the US as well, but it might just be company policy with some carriers for some of their products (ie. non-iPhone handsets).

In late 2006, cell phone unlocking was exempted from violating the DMCA. Beyond that, I'm not aware of any specific laws.

T-Mobile would unlock a phone 90 days after service started or after you bought the new phone. AT&T will unlock a phone at the end of a contract, except the iPhone. Not sure about Verizon or Sprint.