Don't know if this helps but we can still access the .mac homepage site although we have to jump through a few hoops:
Way #1
1) Go to me.com
2) Click on the iDisk icon in the menu bar (Blue folder on purple background)
3) Click on "HomePage" at the bottom of the left panel. (You might have to click on the "SITES" arrow to reveal HomePage and iWeb)
4) Click on "Go to HomePage" at the top right.
Way #2
If you have one of your old .Mac HomePage bookmarked (or remember a url), you can go to that link and click on the "Created with .Mac" icon. This should take you to .Mac HomePage.
Way #3
Try this address:
http://www.mac.com/WebObjects/HomePage.woa
By following any way outlined above, you should be able to access the old .Mac HomePage interface (in all its original aqua glory). Creating pages still works. (at least for me).
The download link was the MobileMe feature I was most looking forward to. Can't wait for it to finally be implemented. I miss some of the old .Mac features, especially bookmarks (used it very often) and Groups (Could have grown into something very interesting).