rdwald writes, "After over a year of hanging in maybe-planet limbo, newly-classified 2003 UB313, nicknamed Xena, now has a permanent name: Eris, goddess of strife. Its moon will be named Dysnomia, after the goddess of lawlessness — in Greek mythology, Eris's daughter — certainly not a reference there... I don't think I'm alone when I say, 'Hail Eris! All hail Discordia!'"
In the same IAU announcement
(PDF), Pluto was given its official minor planet number: 134340.