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What's the deal with WhatsApp?

Facebook dominates the mobile messaging world with its $19 billion acquisition of WhatsApp. CNET's Bridget Carey explains the value of the app, along with news about the Xbox One and a high-tech toothbrush.

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Now playing: Watch this: What's the deal with WhatsApp?
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In this episode of Update, learn why the world loves WhatsApp -- and why Facebook dished out $19 billion for this messaging app. The mobile messaging market is evolving quickly, and Facebook wants to be at the forefront.

Some quirky gadgets also made news today. Microsoft is selling a $25 Xbox One remote control that has a dedicated button for accessing the OneGuide for TV shows and movies.

And if you need more tech in your toothbrush, Oral-B has a smart Bluetooth toothbrush that records how well you brush, and reports the data on a smartphone app.

CNET Update delivers the tech news you need in under three minutes. Watch Bridget Carey every afternoon for a breakdown of the big stories, hot devices, new apps, and what's ahead. Subscribe to the podcast via the links below.

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