You don't say? Well?? here's something you probably didn't know, according to the Nick??Avatar mag issue, Mike and Bryan mentioned the original concepts for avatar.
They discussed an idea to have Aang wake up for 1000 years, not just 100, and thast the world would be more modern and technological.
"Nick: how is the show different different from the way you originally planned it?
Bryan: Originally Aang was going to be trapped in an iceburg for a thousand years, not one hundred.
He was was from a time when technology was far much more developed then the when he woke up.
Momo was actually a little robot monkey.
But we wanted a more ancient feeling, so we did away with a lot of the technology."
Kinda makes you wonder doesn't it? I know it made me go (best impression of Lil' Jon) Huh-What?!