In Pictures: Best new technology from Mobile World Congress 2014

Smartphones, tablets, wearables on display at the show

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WhatsApp and the spoken word WhatsApp is a 5-year-old mobile text messaging company that Facebook just bought for $19 billion, plans to supplement its SMS alternative with an alternative to carrier-based voice calls. WhatsApp Internet-based voice calls will be offered by the end of June, according to CEO Jan Koum, in a Monday speech at Mobile World Congress. He didn’t go into details; speculation is that it will work as does the text messaging service: sign up, and use your data plan to send free text messages, and now voice calls, instead of being charged for them by your carrier. WhatsApp for Android and iOS is free to download and use for the first year; you extend your service for $0.99 per year.

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In Pictures: Best new technology from Mobile World Congress 2014

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