My overall impression of the late pope is that he was generally good to the Jews, though the relationship had its rough spots and we have every right to be critical of him where appropriate. Still, relative to what Jews have generally been able to expect from popes, that's a pretty good record.
That doesn't make the suggestion that we learn Torah in the pope's memory any less kooky. Good to the Jews or not, we don't need to go to exceptional lengths to honor the memory of a non-Jewish religious leader. It's enough that we express our appreciation for his kindness.
But the real reason I refer you to Josh's post on Chakira is for the comments, in which a young Catholic priest offers his thoughtful perspective on the pope's position towards the Jews. Take it or leave it.