Is Yahoo! Protesting the sale of Delicious?

For a little over two hours, now, Yahoo! Mail has been unavailable to its users (yes, all 8 of us). I saw reports this morning that Flickr (another Yahoo! property) was down intermittently, as well.

Has anyone seen any official reports as to what might be causing the issues? Is Yahoo! under some sort of attack? Are the throngs of people transferring their bookmarks from Delicious bogging down Yahoo!’s servers? Are you experiencing any problems trying to access any of Yahoo!’s other properties?