Nope, that’s pretty much all there is.From what I can see of the Garfield page through Google Cache, there's practically nothing there at the moment... maybe more stuff is visible if you're in the U.S.?
Actually, I saw people tweeting about it yesterday. Must have happened after you checked.For the record, garfield.com was still up when I entered it yesterday (felt like reading the birthday strip). So apparently they took it down today.