Google still support XMPP, it's just that it's not federated (edit: according to 0x006A, it still is so they may just be blocking Microsoft). It's been federated for years though but what was the effect of that? Has Microsoft made MSN messenger interoperable, have they done so with Skype? Have Yahoo? How about Facebook?<p>Thing is, as Larry said, they support open messaging but why should they do so with companies that don't reciprocate? Last week, Microsoft decided to take advantage of gtalk federated XMPP to make it usable inside Outlook, this is awesome. However, did they make skype usable inside of gmail? No. So Microsoft is happy to use google's messaging federated openness but refuses to share their messaging with Google which gives Microsoft an unfair advantage. As Larry said, they support openness but not to the point of shooting themselves in the foot by giving Microsoft a commercial advantage by integrating gtalk in Outlook while there's no way for Google to do so with Microsoft's Skype.<p>I think this is pretty fair from Google to defend themselves. And it really takes nerves from Microsoft for complaining about someone blocking them on their messaging network when they have been the king of blocking messaging network with MSN and Skype. Come on.