
http://www.wowdb.com/items/82800-battle-pet-cage#15464-15508
http://www.wowdb.com/items/82774-jade-owl#15464-15508
http://www.wowdb.com/items/82775-sapphire-cub#15464-15508
it sounds like pet battles are now in Beta by the looks of the pet battle cage.