With Google coming out with Gmail, things may be falling into place with the thinking behind Google's purchase of Blogger.
Take a look at this for some insight on where Google is going with knowing and tracking the Internet habits of everyone. Then go on to Phil Wolff's Blog where he fills in the details. I won't bother repeating anything because it is good enough for you to go there and read the full post. Trust me on this.
The final thought on this: "By the way if Microsoft should 'beware' of a company it should be Google..."