Thanks for the spreadsheet. I am a Google+ user, but just went to the Google+ page on another browser (non-logged in) and the "Keep Me Posted" button has now c

Thanks for the spreadsheet. I am a Google+ user, but just went to the Google+ page on another browser (non-logged in) and the "Keep Me Posted" button has now changed to a "Sign In" button. I still have an option to send invites, though. They may have just opened it up a bit more. Can anyone confirm/deny?