Has Bill gone senile?
“Microsoft was willing to buy it, too,”
Why? What for? it's just a moderately popular messaging system, Microsoft have had about a dozen of those. Could they not find someone in their 100 000 strong workforce to work out why it was popular and MSN messenger wasn't? Really?!?
I'll give them a hint - iPhone.
“I don't know if it was for $19 billion, but the company's extremely valuable.”
No, no it's not. It was extremely expensive for Facebook, but Zuck's got way more money than sense, that doesn't make it valuable.
If Microsoft tried really hard, they could roll their own WhatsApp a thousand times over, and probably make it better, and afford to run it at a loss so that it was free for ever, and hook it into Live, but that would require the guy at the top having some sense of vision for a product, or someone in their organisation not being a cow-towing yes-man lacky sucking up to their immediate boss. Oh well.