With a caveat that we're working off of announcements and not our first-hand
What they announced today suggests they are thinking about practical data
Their messaging improvements help users extend conversations outside their
web site. So a web message Amy sends to Bob will find Bob in his email, his
mobile app, SMS, and his Facebook inbox.
This helps people bring their conversations into facebook from other
services, in this case from email and SMS. This also help people keep their
conversations sync'd and fresh on facebook and other sites, like Gmail.
Facebook is showing they understand that personal data portability matters
to their users.
Along with this announcement, Facebook said they want to provide you access
to your complete history of your Facebook activity. This may be new. If so,
this is a new data portability practice.