According to reliable sources, Mac OS X 10.3 Panther build 7B63 has surfaced internally at Apple and in other select venues. Further information on the build is forthcoming.
Meanwhile, Apple has apparently slipped finalized copies of Mac OS X 10.2.7 Blackrider in employe's duffle bags just prior to their departure for Apple Expo Paris. Multiple sources are now confirming PowerBook updates for next Tuesday.