A more generic social sign-in Google button has been appearing in some developer accounts, according to The Verge. But a Google spokesperson says it's much ado about nothing.

The writing sure seems to be on the wall for Google+. A few days after Google+ boss Vic Gundotra suddenly announced his departure from the company, Google has begun testing a new sign-in button ...

Google has unveiled Google Identity Services, a set of standard interfaces that lets developers integrate Google's One Tap for faster user sign-ups and simpler sign-in. Google Identity Services ...