Agree 100% - as a Mac user since 1989, I'm stunned at the incredible step backwards Address Book and iCal took with Lion.
Designing software to look like real world hardware objects was a terrible idea in the 1990s when Sony and IBM tried it and failed (anyone remember the Sony MagicLink PDA with Magic Cap UI? The IBM realphone UI that had all of the drawbacks of a physical phone with none of the benefits of a graphical UI?).
Ironically the new UI of both Address Book and Calendar comes out just as the following Steve Jobs quote from 2006 is getting a lot of press thanks to this Wall Street Journal article.
“Look at the design of a lot of consumer products — they’re really complicated surfaces. We tried to make something much more holistic and simple. When you first start off trying to solve a problem, the first solutions you come up with are very complex, and most people stop there. But if you keep going, and live with the problem and peel more layers of the onion off, you can often times arrive at some very elegant and simple solutions. Most people just don’t put in the time or energy to get there. We believe that customers are smart, and want objects which are well thought through.” [MSNBC and Newsweek interview, Oct. 14, 2006]
The best way to provide to Apple is through their feedback site:
Here is the OSX feedback link.