I think we should take a few minutes to read other thread on the board before starting a new one that is duplicated. There is one that started already just a few message below yours
I think they were testing it but I'm not sure if its live yet. Google has a bigger problem, Bing, did you see the vampire commercial? Make me want to use Bing right now...
Even the caffeine original link that Google show is not available.. here http://www2.sandbox.google.com/
Actually it has been live for awhile, just only in one data center. I've been using the interface they have been testing with caffiene for over a month and a half now. They are moving to update, but how fast before all data servers are running the Caffeine, is a crap shoot. What you will see is a deeper index and a faster process, and mixed with their real time search, I'm interested to see what Google does from here.