Facebook Chat/Contact Sync
Hmm, so much for nothing ever disappears from the internet. I can’t seem to find any bits of these two apps.
Facebook Chat was a chat app for Facebook that hooked in to Facebook’s SMTP server to allow you to chat with friends back before Facebook discontinued SMTP support.
Facebook Contact Sync queried your list of friends for contact info and added them to your phone (back before Facebook had an Android app and had support for contact syncing).