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Mobile Minutes: Instacart layoffs; Windows 10; Tech stocks; Twitter invests in Muzik

Are Instacart layoffs a sign of things to come?
Instacart and HotelTonight have joined the herd of tech start-ups that are rightsizing their businesses heading into 2016.
Read more on CNBC

Microsoft's latest operating system running on 200 million devices
Microsoft Corp's latest operating system, Windows 10, is running on 200 million devices in what the company said was the fastest adoption rate of any of its operating systems.
Read more on Reuters

Tech stocks slammed in broader market plunge
Shares of several high-profile tech stocks sunk on the first day of trading in 2016, part of a broader global sell-off on Wall Street Monday.
Read more on USA Today

Twitter invests in Muzik, a high-end headphone startup
Here is something you didn't expect to hear about coming out of CES this year: Twitter has invested in Muzik, a "connected headphone" company.
Read more on CNBC