"To help easy storage concerns in the new expansion, Blizzard is
implementing an entirely new system in which all Vanity Pets and Mounts
and learned like spells and stored in an interface much like that of a
Hunter's pets. This interface is accessible off of the Character sheet.
(See the image at left.)

From the official EU Beta Forums:

We’re pleased to announce a convenient upgrade to the way that mounts and vanity pets are handled in Wrath of the Lich King.

Players will be able to “learn” a mount or non-combat pet much
like learning a spell, recipe, or new ability, and these creatures will
then show up on a new Pet tab within the Character Info section of the
interface. Players will be able to access and preview their learned
mounts and vanity pets through this tab.

Once learned, the pet icon or mount icon will no longer appear
in bag spaces or bank spaces. This inventory space will be made
available once again for other adventuring needs. Pets can still be set
to hotkeys by dragging them to the hotkey bar, much like any other
spell or ability"

 not my own words <.<

 =_

Hunters have been mocked as being one of the "easiest" classes to play in WoW by many people. So much so, that they gained a nickname to demonstrate this lack of skill: Huntard. What these people don't realize, is all of the thought processing that a good hunter has to go through in order to maximize DPS.

The naturally built in damage that a hunter gets is Autoshot. Autoshot takes .5 seconds to fire, but has a cooldown based on weapon speed. Hunter's have several shots in their spell book, that are used regularly, that do damage besides the naturally built in Autoshot. These include Aimed Shot, Arcane Shot, Multishot, and Steady Shot. While Aimed Shot does the most damage of the three, it has the longest cast time with 3 seconds as well as restarting the autoshot timer. This means that its really only good for an opening shot with Misdirection, or a fight where you REALLY need the Mortal Strike debuff that it brings to the table. Arcane Shot is an instant shot that deals decent damage, and Multishot is essentially an instant cast as well, that does damage to three targets and is about on par in damage with Arcane shot. Steady Shot is a 1.5 second cast shot that does decent damage, but it is your most mana/damage efficient shot. The biggest problem with Steady Shot, is that while casting that 1.5 second shot, your autoshot cannot fire, and thus, cannot start its cooldown time. You will want to use this shot as often as you reasonably can.