I doubt this is true, but here it is.

Post author By Dan
Post date October 10, 2003

Next STAR WARS Title Is?
Could the name for the last STAR WARS prequel be EPISODE III – REVENGE OF THE SITH!?! We are if we’re to go by a reader on TheForce.net. Supposedly he knows someone (one of them stories) who works at the domain registrar Register.com. They told him that Lucasfilm Ltd got Register.com to purchase the RevengeOfTheSith.net name for them. Only the force knows if this is true though!