iTunes 4.9 supports PDF enclosures!

By accident I discovered that iTunes 4.9 downloads PDF enclosures from a podcast feed:

It even has a document icon next to it. If you double-click it, it opens in Preview or whatever PDF viewer you've configured.

(Movie enclosures are of course also supported and have a movie icon.)

I wonder what other enclosure types iTunes recognizes...

(OPML maybe, for shownotes or multiple enclosure support?)

2005-06-30, Update: Here are some details.