Sergey Alakov spotted a new Google hotel search results test, this one with the hotel highlight icons triggering overlays on top of the listing. This way when you click on a highlight icon, it shows you more details and you can swap to see more highlights or X out of the highlight view all together.
Here is a screen shot Sergey posted on Twitter:
He posted many more details and many more screen shots on his blog.
I am not sure which interface I like better, but they both work well.
Forum discussion at Twitter.