http://legalinsurrection.com/2012/09/elizabeth-warren-represented-massachusetts-client-in-massachusetts/
I consider that test irrelevant, but in any event, Warren did represent a Massachusetts client in Massachusetts on a Massachusetts legal issue.
The case was an appeal in the First Circuit Court of Appeals in Boston in the case of Cadle Company v. Schlictmann.
The case involved a dispute as to a lien on a contingent fee earned by Beverly, Massachusetts lawyer Jan R. Schlichtmann, who was the subject of the film A Civil Action. The issue in the case was whether a creditor or Schlictmann was entitled to the contingency fee earned in a case which started prior to Schlictmann
The core joke of Hitchhiker's Guide to the Galaxy is that of course no civilization would develop personal computers with instant remote database recovery, and then waste this technology to find good drinks.
Steve Jobs has ruined this joke.