Google replaced their XMPP messaging system by Hangouts, a 100% closed protocol with no signs of even wanting to open source it.<p>From a FOSS pov, both Google and Microsoft have positive and negative sides to it. They&#x27;re massive companies, you can&#x27;t judge them as one giant blob.<p>What MS is doing <i>right now</i> with .NET is fantastic for open source. Just like what Google is doing right now with Hangouts is frankly bullshit. Judge actions, not entities.