I'm sure the koreans are not that stupid, wiring everything with 100mbit meaning they'll probably put cat5 cables with 8 wires, which means the transition to 1000mbit will be easy.
And when in 2010 a korean kid will packet you with a 1gb connection, we'll see who's laughing.
By the way, i'm not korean.
KEKEKEKEKEKKEKEKEKE KTHX.