Zuckerberg Belives WhatsApp Could "Connect 2 or 3 Billion People"

Mark Zuckerberg has announced his revised goals for WhatsApp. The world's most popular messaging service, which was bought out by Facebook for a stunning $19 billion last year, could cater to a lot more than the 1 billion people Facebook had initially estimated.

Zuckerberg announced at an event in Mexico City that " WhatsApp is going to be the global text messaging platform," and that there is "an opportunity for WhatsApp to connect 2 or 3 billion people."

Now, WhatsApp, where is my free WiFi calling feature?