Believe it or not, as of Saturday, 2/2/13, it became illegal to unlock your cell phone. Or to unlock anybody else’s cell phone. The failure by the LIbrary of Congress to renew an unlocking exemption to the DMCA means that you must seek permission from the carrier or phone manufacturer before you can unlock your cell phone. If you don’t? You can face prison time. Just ask Sina Khanifar, who in fact was threatened with up to 5 years in prison. His crime? Unlocking his Motorola Razr.