Bad news for Windows Phone users who synchronize their Gmail account.
On December 14, 2012 Google have announced that they will discontinue their support to Exchange Active Sync.
Taken from the official Google Blog:
Google Sync was designed to allow access to Google Mail, Calendar and Contacts via the Microsoft Exchange ActiveSync® protocol. With the recent launch of CardDAV, Google now offers similar access via IMAP, CalDAV and CardDAV, making it possible to build a seamless sync experience using open protocols. Starting January 30, 2013, consumers won’t be able to set up new devices using Google Sync; however, existing Google Sync connections will continue to function.
Exchange Active Sync is a protocol developed by Microsoft and released about 10 years ago. It allows mobile devices to synchronize email, calendar, contacts and tasks from messaging servers (Like Exchange) over HTTP/S connections.
To this date, Microsoft doesn’t support protocols like CalDAV and CardDAV and only supports Exchange Active Sync. Google have also decided not to develop any applications to Windows Phone which means that at this point there is no way of synchronizing Gmail accounts with Windows Phone.
Microsoft have yet to respond to those news so we’ll have to wait to hear how they plan to solve this.