No they haven't taken it down. Here's the mention at the last D5 (http://d5.allthingsd.com/20070531/d5...bs-transcript/)
"Walt: You obviously have a very large Internet business with iTunes and you sell a lot of stuff in the Apple Store, but, you know, you were early with this idea that when you bought a computer from Apple, you had this kind of Internet service back end, and it was called “.Mac”. And I think a lot of people feel you haven’t developed it very much.
Steve: I couldn’t agree with you more, and we’ll make up for lost time in the near future."