If you look at the pitures of the AmigaOne you can see the brand/model of the NorthBridge.
Here is a link that give you more information about it.
I like particularly this article that says Pentium 3, Pentium 4 performance at half the price.
The Amigaone look to be exactely a Teron CX.
Lets just hope that YOU guys order enough AmigaOne to get lower and lower prices.
I guess Bplan used the Articia S to build the Pegasos.