I've finally got around to deleting my Facebook account.
I'd love to claim that this was a grand gesture against privacy-invading apps, or a bid to recoup vast amounts of my spare time... but it's not, really. I rarely logged in to the site, these days, so Facebook has very little of my personal data.
So Facebook Chat now uses XMPP. And the Empathy development version has some nice integration.
This could mean that I can finally chat to non-Jabber using friends on a regular basis. It's been nearly four years since I switched from MSN to Jabber, and I think I lost contact with a lot of people. Facebook chat via AJAX is unreliable, and my visits to the site are quite irregular, so hopefully this will work around both problems....