CNET News Video: Text while abroad with these apps
CNET News Video: Text while abroad with these apps1:04 /
Last week, Facebook purchased WhatsApp for $19 billion. Not familiar with the mobile-messaging app? CNET's Kara Tsuboi brings you up to date on WhatsApp, which boasts 450 million users around the world, and other apps for free texting in this Tech Minute.