Yes: Fury Warriors can now do this. They are the only class that can dual wield two-handers.
Yes, from level 20 on a Hunter can learn to dual-wield weapons from his trainer. You can dual wield any one-handed weapon the hunter has proficiency in. Hunters cannot learn to use 2 guns, or dual-wield 2-handed weapons.
Yes, Death Knights are able to dual wield in beta, and will also be able to in live WotLK. They can use 2 handed axes, 2 handed swords, 1 handed axes, 1 handed swords, and dual wield the one handed weapons. They CANNOT use shields.
Rogues start out dual wielding. This is a recent change in 3.3. Before you could only learn it after a certain level. Now, rogues start dual wielding daggers.
Yes a hunter can Dual-Wield.
No you cannot duel wield and no bubble shields etc. or radar it truly makes it a different game play.
If your class can duel wield then just right click on two one handed weapons in your inventory to equip them. Note that some weapons have to be used in a specific hand so you can't wield two main hand or two off hand weapons.
Buy Daggers, they are dual wield.
Hunters can use any weapon except wands, and one/two handed maces.
Yes, but only certain weapons can. These weapons are labeled as 'Akimbo' when they are being dual-wield.
some weapons are dual weild. you cant make yourself dualweild
No, they cannot. The ability to dual-wield twohanded swords is exclusive to Fury Warriors, who take the talent "Titan's Grip" to be able to do so.
Paladins can use 1 and 2 handed Axes, 1 and 2 handed maces, 1 and 2 handed swords, and polearms. No ranged weapons, daggers, staves, or fist weapons. Also, they cannot dual wield.