Metro by T-Mobile just launched the most affordable device protection plan in the industry—$3 per month with a $19 deductible. Here's what wireless dealers need to know about this game-changing announcement and how to leverage it for customer acquisition and retention. The Big News: $3/Month Device Protection Metro by T-Mobile has disrupted the device insurance market by introducing a new protection plan that costs just $3 per month with a $19 deductible . This represents the