#0 - July 3, 2008, 5:13 p.m.
Will the US page be updated today to follow suit?
https://www.wow-europe.com/account/beta-opt-in.html
http://www.mmo-champion.com/index.php?topic=9674.0
Before anyone says "Old news", this page actually confirms you've opted in rather than just being a link to the scroll page.