I can hear the thuds on the floor as the "I just don't get it" brigade become overloaded by Facebook's announcement that it is extending the ways in which applications can integrate with their mobile platform. They are even opening up methods for sending SMSs. Facebook has been a runaway success as has text messaging. Up to now if you write an application for Facebook you lose members of your audience when they.. well, go out. Now you can interact with them wherever they are.