The UI in my mind for this perfect facebook app is more or less like the facebook touch website just more dynamic and versitile. More over, since it's the Maemo 5 os on top of that it is 100% opensource, i dont see why it cant be done. Open source is only limited to the creaters imagination and programability.

Just hope the dudes in Maemo.org take this into onsideration before things get to out of date.