Hiya, there is foc-u and there is a foc-u2 somewhere too in BaceFook land.
If you search for the groups as written above you should find them.
SMF have a mod that allows FB interconnectivity (liking and sharing posts on here, tha kinda thing) but it's VERY buggy.
We're running it on the test site and I've got it on my own wee site but neither Farjo nor I are convinced that it's ready to go live with yet.
Doesn't help the dude that develops it seems to have been kidnapped by space aliens.