No more unlocking
In 2006 and 2010, the Librarian of Congress had permitted users to unlock their phones to take them to a new carrier. Now that’s coming to an end. While the new rules do contain a provision allowing phone unlocking, it comes with a crippling caveat: the phone must have been “originally acquired from the operator of a wireless telecommunications network or retailer no later than ninety days after the effective date of this exemption.”
In other words, phones you already have, as well as those purchased between now and next January, can be unlocked. But phones purchased after January 2013 can only be unlocked with the carrier’s permission.
The reasons for the distinction include that none can be made about what is a tablet.