This recent news from Google about removing 3rd party support for the XMPP protocol on May 15, 2014 should not be a big surprise. Google hinted that this was going to happen back on May 15 of 2013 when they launched the new Google Hangouts. At that time, they also placed a brief announcement on their Google Talk Developers web site stating:
It really is too bad that Google continues to pull the plug on services that dedicated followers have come to enjoy and depend on. But, in this day and age of technology, the only thing we know for sure and can count on is that things will always continue to evolve and change...."Note: We announced a new communications product, Hangouts, in May 2013. Hangouts will replace Google Talk and does not support XMPP. The information in this Developer's Guide pertains only to Google Talk."