Short (mostly screenshots) description of Google Contacts Sync, all you have to do is to enter your username and password. Install "syncevolution-frontend" from Extras-Testing (or Extras-Devel) repository? It should be in "Office" category. Considering Google's Winter Cleaning, we all (Google users) should be moving from SyncML to CalDAV+CardDAV. No need for immediate panic, though; it seems that SyncML is disabled only for new Google accounts. There is syncevolution with CardDAV+CalDAV support. Best wishes.