Alex Heath via TechCrunch:
WhatsApp, the popular messaging service that was recently bought by Facebook, is adding a big feature in a few months: voice calling.
During a keynote at Mobile World Congress, WhatsApp CEO Jan Koum announced that voice calling would be added in the second quarter of this year. The feature will be a free addition to the already free app.
WhatsApp has 465 million monthly active users, which is 15 million more than Facebook. The service’s huge international presence (it’s the largest mobile messaging service in Korea, for example) also helps explain why Facebook paid $19 billion to own it.