The 18W Zacate seems to be 80 dx11 shaders at 500MHz coupled with a dual core 1.6GHz out of order CPU.
I would guess from those stats it would be ballpark with the ASUS UL30Vf in your list? Time will tell.
That can't be far off the old Ferrari 11inch netbook in terms of thermals, but sounds like it should have better idle power and hence battery life.
There will also be a 9W variant, but not seen and hints to what they are clocking that one at.
http://www.fudzilla.com/processors/p...works-at-16ghz
http://www.anandtech.com/show/3933/a...ormance-update