This came in a comment on a post detailing some good link-building tips, Google style.
I covered it on my SMX panel but for some reason Lisa didnâ€™t mention it in the live-blog coverage. You might check this link: http://www.ustream.tv/recorded/5186826 I think I talked about it some there too. The short answer is that Caffeine is still live at only one datacenter. Things are on track though, and we expect to roll out Caffeine to all data centers in the coming months.
The fact it’s not launched yet is strange but I suppose they need to get these things right. Google can launch new products before they are ready all the time when they are just gimmicks but they can’t launch a new search infrastructure until they are sure it will work.