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Mobile Minutes: Snapchat beats Instagram; Virtual reality slows; A slimmer Kindle; Shoppers and apps

Snapchat has surpassed Instagram as the social media bae of choice among teenagers, according to a study done by Piper Jaffray.

Virtual reality may need some more time to catch up to the hype.

Amazon.com Inc rolled out a new Kindle e-reader on Wednesday, its eighth and slimmest device in the series, with a charger that is built into its cover.

Hana Pugh, a 29-year-old event planner and new mother, buys most of her household items and baby goods online. But she doesn?t use her computer to shop. Instead, Ms. Pugh taps away at her iPhone.