News of Note—Apple’s U.S. smartphone sales, FCC emergency alerts, AT&T’s Mexico business and more

Here are the other stories we’re following today.

> A new survey from 451 Research shows growing interest in Apple products. Release (PDF)

> According to Counterpoint Reseach, Apple sold 22.39 million smartphones in the U.S. market during the fourth quarter, growing its market share in the country to 44%. “This is the highest ever market share for Apple in its home market,” the firm said. Release

> Apple is reportedly under investigation by the SEC and DOJ for slowing its older products. TechCrunch article

> DARPA’s three-year, $3.75 million challenge to solve spectrum scarcity will end in a “championship” event at the upcoming Mobile World Congress Americas trade show. Release

> Fujitsu confirmed its mobile business is for sale. Mobile World Live article

> The FCC said it would improve its emergency alerts process. Mobile World Live article

> Amazon’s Alexa can now send text messages. PhoneArena article

> China’s ZTE is looking to raise $2 billion to develop 5G technology. Reuters article

> The Google Play store removed 700,000 bad apps last year. VentureBeat article

> In a detailed report on the topic, AT&T’s Randall Stephenson is clearly making inroads in the Mexican market, putting him into direct competition with his former colleague and friend, billionaire Carlos Slim. Wall Street Journal article

> Research firm iGR predicted that, by 2022, mobile data traffic will rise to 82 million TB per month. Release