brinked - 8:33 pm on Mar 12, 2010 (gmt 0)
I see no half caff results on all these IP's being mentioned here. I either see caffeine or current serps. When you view SERP's based on IP, they are not going to be the same as when you view them at google.com.
use any datacenter watch tool and you will see all them show these so called "half caff" results