No doubt you have seen or heard about the new “faceplate” and application enhancements Facebook is planning to roll out to its nearly 200 million users.

If you are a current Facebook user, you can view a demo directly at the top of your profile page. If you are not a user, you can still view the enhancements here.

When you add up this latest, extensive round of changes -- mostly live publishing feeds, contact filtering, and a more robust user tracking system -- it becomes apparent to me that Facebook may be targeting the elimination of Twitter Inc.

It can’t be coincidence that the changes Facebook is making reflect a near duplication of the primary Twitter offerings. And from the looks of it thus far, Facebook’s will be done better.

Now that Facebook will virtually overlap the primary offerings of Twitter, questions appear: Will Twitter fans begin to migrate to Facebook? Will new social network users do a quick comparison of the two sites and choose Facebook over the now-overshadowed Twitter offerings?

People may believe that the business models of Twitter and Facebook are distinct from each other. They are not. Both sites have goals to retain active social users and expand their offerings to keep those users loyal and connected. In the long run, the only way to reach these goals is to provide a one-stop location for developing, publishing, and sharing content of any kind and in any format.

In my view, Facebook's ahead. Here are three reasons why I believe Twitter is in serious “twouble”: