I went to the Apple store a couple weeks back, intent on buying the lovely new 24" Cinema Display. When I got there, I learned that it wouldn't work with my previous-generation MacBook Pro, and that there was no way to make it work (note that a new adaptor is coming in September, for the hefty price of $179).
Frustrated, I went home, and eventually wrote a review on Apple's website, saying that the display was gorgeous but that the inability to use it with my older Mac was a failure, and gave it one star. Here's a screenshot of what I submitted:

Apple Store Display Comment

A couple weeks later, I still haven't seen my review show up on their site. If you happen to see it, please let me know in the comments below.