I was just watching the Skyrim VGA trailer, I noticed at the end he says "but there was one that they fear" as the camera pans up to view a shield baring man breathing fire, he yells "Dragon boy"!  The possibility of gaining the ability to breath fire sounds like it would be awesome in this game.
Im not sure if ive been in the dark this whole time and everyone knows this already, but if you dont id like to know.

Dragonborne

lmao

He said Dragon Born, most likely a reference to ascended Ninth Divine Tiber Septim (Talos)

Wow, that trailer will never be the same for me now.

That trailer is so lame T.T, but im pretty sure the game will still be kickass.

Dragonboy Suede confirmed.

Reminded me of Batboy 
 
http://laist.com/attachments/la_tomdog/batboy.jpg

Someone had sex with a dragon? LOL!

For a second there I thought you meant they were drawing too much on their experiences with Fallout and made their high fantasy version of VaultBoy... 
 
But no. You just misheard, alas.

The words in the trailer are: 
 

 You should have acted. 

The Elder Scrolls told of their return. 

Their defeat was merely delay 

Til the time after Oblivion opened, 

When the sons of Skyrim would spill their own blood. 

But no-one wanted to believe. 

Believe they even existed. 

And when the truth finally dawns: 

It dawns in fire. 

But, 

There's one they fear. 

In their tongue, he's Dovahkiin: 

Dragon Born!