The Mac version of Chrome is experimenting with something Google calls “Tab Overview” or Tabpose. Tabpose is similar to Mac OS X’s Expose; it allows you to visually pull back and see all your tabs as thumbnails and quickly switch between them. It will be really useful for someone who wants to be a power user of chrome
Here is a screenshot that http://arstechnica.com has posted on their blog. However, I believe that there a lot more coming in for tab pose and it will be something that adds beauty to Chrome OS.
I will tell you why I am thinking that there is more to this. Do you remember these two screenshots from a post here at chromestory.com about Chrome OS? Look at them again and tell me if you can guess something.