I should add that in other countries around the world we have deleted the data at the request of the privacy commissioner in that jurisdiction where we've been permitted to by law, and in this case, when I called the Privacy Commissioner about this issue in May, I asked her specifically what she wanted done with the Canadian data, whether we ought to preserve it or delete it then. She advised me that we ought to delete it then, and that's what we did for Canada.
On November 4th, 2010. See this statement in context.