We're pleased to be able to bring two new additions to the Blizzard Pet Store: the miniature robot Lil' XT and the Celestial Steed, the first mount to be available there. These fun options are available exclusively through the online Blizzard Store.
For more information, check out the Pet Store FAQ, which holds answers to most common questions:
http://us.blizzard.com/support/article.xml?locale=en_US&articleId=29845 