Switching back to the old Facebook design...
After stumbling through the new design interface for two weeks, I finally lost patience, and switched back to the old design (maybe it was too much for me to adopt new designs of both Facebook and Delicious at the same time). Over the two-and-a-half-weeks, I noticed that my visits to Facebook were diminishing, but maybe that's a good thing. Actually, if it weren't for Facebook, I wouldn't have planned to meet my friend for a reunion. The last time we saw each other was May 2007, so Facebook does have some utility in my life.
It is different because the new design has a wider palette, however I couldn't find my favorite new apps, or figure out how to post on someone's wall. When you change your template, it automatically changes the template for all your friends' pages that you visit. But recently, I was trying to figure out how to write on someone's wall, and wasn't even sure if the message was posted. And they've managed to stick one more ad on the right side (2 ads total).
When I reverted back to the old design, there was a warning that I would probably loose all my new friends that were added to my network while using the new design, but I don't think I lost them because their messages on my wall were still posted.
It may look better, but I liked the old interface better because I could navigate through my ritual of checking messages, keeping up with games, poking and posting messages. Maybe this new design is suited to new users. The new one sort of reminds me of FriendFeed and a little bit of Twitter sans the neat boxes.