Hello everyone, I just saw the wikidata talk from wikimania 2012 and I have to say wikidata is shaping up nicely. One think I noticed and like in particular is your idea how to handle 'facts' so that only adding or removing is allowed, but not editing. In my opinion thats a tremendously useful concept. It aligns with others ideas mentioned in this talk ( http://www.infoq.com/presentations/Value-Values) Looking forward to the finished phase 1 regards andreas S.