Gents,
I noticed that after the a.m. upgrade (from openSUSE repositories on an openSUSE 12.2x64) all my local contacts are gone! The folder ~/.local/share/contacts is now empty! Sync with google contacts is not working as well (just the turning wheel all the time)

Anyone an idea where this comes from?

For Google Contacts, ensure you have the latest "libkgapi" installed, and try retrieving the properties of each account (in KAddressbook, right click on the addressbook and select "addresbook properties").

I haven't experienced the contact loss you describe, however (I just checked my folders to be sure).

I fixed the google-Problem by deleting and recreating the Akonadi-Resource.
Anyway, my local contacts are lost...fortunately I did a backup recently