With the launching of FBGAPP we have included the ability to post to facebook pages.
Posting to your facebook pages and all the pages you have liked on facebook is almost the same as posting to facebook groups.
To post to Facebook pages, simply follow the steps below.
Import your Facebook Pages into FBGAPP
If you are a new user of FBGAPP, your facebook pages will be imported along with your groups when you add your facebook account.
For current users of FBGAPP, From the Main menu, goto settings > Facebook Account > delete your current facebook account.
Re-add the facebook account and all your Facebook pages and groups will be automatically imported.
Now head over to this post to learn how you can post to facebook pages and groups.