#0 - July 3, 2008, 7:29 p.m.
Blizzard Post
The identity of the in-game World of Warcraft pet exclusive to visitors of the 2008 Worldwide Invitational has been revealed: It will be a miniature version of the Archangel Tyrael of Diablo 2 fame who will travel with you on all your grand adventures in Azeroth!
http://eu.blizzard.com/wwi08/index.xml

The code that was provided in the goodie bag at the 2008 Worldwide Invitational will be usable after patch 2.4.3 is released in the near future. We will also keep you updated in our forums! http://forums.wow-europe.com/thread.html?topicId=4672858086&postId=46723592630&sid=1#38