Lot of people are having the same error issues. If you have ever synced with your computer its hard to cloud sync again there should be a thread explaining how to.
And for google to sync without any errors at first you need to delete all your contacts and calendar events then try to do initial sync. if you do not want to delete or loose your calendar events best way I say would be to sync google calendar with new calendar(you can choose this option if you click on advance settings while your configure your MfE.) or just export your calendar somewhere in documents and then save that calendar to your computer, once you do that delete your calendar entries. Then set up your MfE with google after this export your calendar to google via computer(the one you saved in your computer). (doing this will go through the initial sync but later it will give you the same error). As long as we do not get SyncML support I think this the problem we have to live with.

Talking about SyncML has there been any words if we will get the SyncML on the next update?