Google Blog Search Goes Live

Google has launched a blog specific search engine this morning. I am interested to see the reviews. I'm also wondering if blogger.com and blogspot.com blogs get preferential treatment. Another question I have is, does this indexed information carry across to the main google search? My preliminary search seems to indicate that it doesn't. Google's blog search seems to list every one of my posts, where as the main Google engine lists only a handful and seems to list my comments on other blogs more.