We're here in San Francisco at the Facebook F8 conference for software and app developers. It's in a trendy media space on 8th Street called the Concourse. Basically, it's a massive barn-like warehouse that Facebook has filled with info booths at which you can ask staff about every aspect of its business.
In one way, it's weird that Facebook just agreed to pay $19 billion for WhatsApp. The messaging app — which allows people to send texts, audio and video — does pretty much the same kinds of things that you can already do on Facebook.