The WhatsApp valuation is one that mystifies me. It won't be long before someone actually takes out Spotify and similar streaming apps.  The irony, those are services that require big fast data.  Music storage alone is incredible. Now, add all the new live streaming video services like Shap Chat and Boomerang and Instagram Live etc etc.  There will be competing services coming out of the wooodworks.  

Where will the fast, reliable communications and storage solutions come from?  This is why venture capitalists are trying to find data farm solutions and have been for a couple of years.