[Adam Harley (Kawauso)]

From what I can tell, the only things relating to groups in Facebook’s API are

groups.get

Returns all visible groups according to the filters specified.

groups.getMembers

Returns membership list data associated with a group.

I think you’d therefore have to scrape the Facebook page manually and parse it’s HTML to pass back Facebook posts. Do-able, but it wouldn’t be very good for keeping in sync well.