Not to be outdone by AT&T’s recent changes to GoPhone and Cricket that added unlimited calling to Mexico, Boost Mobile has announced its own unlimited Mexico calling feature in “Todo Mexico Plus”. For an additional $5 on top of the $45 or $55 monthly plans, customers will be able to call Mexican mobile and landline numbers for no additional charge as well as send unlimited text messages to Mexico and most of the globe along with unlimited calls to Canada. The add-on is available today for new and existing customers.