Google:
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. Google Sync will continue to be fully supported for Google Apps for Business, Government and Education users who are unaffected by this announcement.
In short, if you’re using Google Sync now, you’re good, for now. That said, this method is a great alternative to Exchange.