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Mobile Minutes: Facebook buys Wit.ai; AT&T's rollover plan; Xiaomi tests Indian market; Android app stops spies

Facebook buying speech-recognition developer Wit.ai
Facebook Inc. is acquiring Wit.ai, a developer of speech-recognition software, as the social-networking service seeks to expand its artificial-intelligence technology.
Read more on Bloomberg

AT&T launches rollover data plan
AT&T Inc said it would introduce a rollover data plan for some of its customers, less than a month after smaller rival T-Mobile US Inc launched its own plan.
Read more on Reuters

China's Xiaomi tests selling phones in stores to pep up India sales
Chinese smartphone maker Xiaomi said it could sell more models in Indian stores while pursuing its primarily online-only strategy if it succeeds in selling enough Redmi Note 4G handsets through shops of carrier Bharti Airtel.
Read more on Reuters

Android app stops smartphone spies
A new Android app can detect surveillance attempts on your smartphone, including IMSI catchers (also called "stingrays"), hidden text messages and attacks exploiting the telephone-signal protocol known as Signaling System 7 (SS7).
Read more on Fox News