We can add another fb application by add it to the form. Just know apikey or appid of fb application. We can backup or restore our list.
Sorry,it is limited to fb only,not for twitter or other social network.This function is only for status updating.
http://bit.ly/tutorffu (Read this for the tutorial how to add/create your own application status update)
If the box for update status is error, it may be caused of facebook maintenance by the FB Developer,so it affect to that modules (box component for status updating)
For Update status via iphone and bb, it didn't worked anymore because of theirs apikey protected,so cannot be used