That said, it's possible that Facebook's mobile takeover has already begun -- it's just not as direct as we expected it to be. Popular social games, such as Zynga's "With Friends" franchise or OMGPOP's Draw Something use Facebook almost exclusively to connect users, while other non-social games such as Angry Birds still allow users to tap into to Facebook to share their scores with their friends.

Facebook's big mobile move might be years away, but when it does it will have the largest preinstalled user base to tap into when it does.

Every year, millions of Americans will start their own business. And Facebook will undoubtedly play a large role in many of these businesses. Not only will Facebook affect small business owners' marketing and social networking strategies (it's essentially free advertising), but it will also be where much of their customer base resides.

It's not unlikely that Facebook will try to use this power to its advantage. After all, think of how valuable a hand-delivered batch of customers who fit a targeted demographic exactly -- right down to the movies they like and the sodas they drink -- will be to a burgeoning business. What business wouldn't pay for such an advantage?