Most of Google’s chat services over the years have been cobbled together from sealed off manipulations of an open chat platform called XMPP. The service is flexible, scalable, and has served Google well for quite a while. Google’s recent decision to block non-native XMPP requests is the first step towards building their own closed communications platform. In order to use Google’s chat service, especially the new Babble service, you’ll need to be using it the way Google wants you to use it. That’s not going to sit well with many users at first, but the quality and performance of the service will be more than enough to make most users happy.