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Mobile Minutes: Snapchat?s advertising struggles; Pepsi Phone P1s; Google takes on Amazon; Jawbone cuts staff

Snapchat's lackluster ad business threatens $16 billion valuation?
Snapchat, maker of a free mobile app that lets users send videos and messages that disappear in seconds, is struggling to gain traction with advertisers, fuelling investor concern that its $16 billion valuation isn't justified by a business that hasn't yet shown it has a steady source of income.

As it turns out, soft-drinks maker Pepsi is diversifying its portfolio. The company?s brand new ?Pepsi Phone P1s? is official now in China with top-of-the-shelf configurations and an affordable price tag.

One of the great mysteries of the tech industry in recent years has been the seeming disinterest of Google, which is now called Alphabet, in competing with Amazon Web Services for corporate customers.

Jawbone, the maker of the Jambox speaker and variety of fitness trackers, confirmed Friday it will lay off 15 percent of its global work force.