Something that I've just noticed today. In iChat, there is a "Facebook Friends" group that shows up in my buddy list. I don't have iChat configured to log in (via Jabber) to my Facebook account or anything. The only thing I can think of is that when Facebook for iPhone synced with my contacts that it added the category when my iPod touch synced with my MacBook Pro. Whenever I delete this group, it pops back within a couple of seconds. Any way that I can completely get rid of it? Nobody ever pops up in the list.
Edit: Could it have anything to do with the AIM app on my iPod touch? It has a Facebook thing, but I haven't authorize it.