BY <a href="http://www.engadget.com/about/editors/sean-buckley/">SEAN BUCKLEY</a> <a href="http://twitter.com/seaniccus"> @SEANICCUS</a> -<br><br>The Governor of Minnesota just <a href="http://www.nbcnews.com/tech/mobile/mandatory-smartphone-kill-switch-becomes-law-minnesota-n105521">signed a bill</a> that could change the cellphone industry forever: a mandatory kill-switch law. The bill was written as a criminal deterrent: if a stolen phone can be remotely disabled, stealing smartphones may become a less lucrative crime. A study conducted at <a href="http://www.engadget.com/2014/03/31/phone-kill-switch-study/">Creighton University</a> suggests that such a measure could save consumers upwards of $2.5 billion a year, but it could prove expensive for carriers<br><br><a href="http://www.engadget.com/2014/05/14/Minnesota-kill-switch%20/">READ MORE ON ENGADGET</a>