You _could_ run linux off a gumstix. http://gumstix.com/

With exponential progress, we prove that desire expands at an even faster pace.

It reminds me of a joke made by a general to a bunch of military tech makers: "our marines carry 100lb of extremely light weight gear"

I have a Nokia N800 and a folding keyboard I can use with it, but the screen is too small for real work. I want something with a 12" screen that's very light.

I'm told the next generation of NVidia chips are going to be amazing. A friend is working in high end audio, making a "iphone on steroids" touch-screen remote for the system. The tablet will have full 3D graphics for an 8" screen with half the thickness of an iphone. With a tiny folding keyboard, solid state storage, and some sacrifices on batter life for size, hardware designers should be able to put an ultra-ultra-portable on the market within a year or two.

Asus Eee looks great for that, but I'm with you, a thin Macbook makes me feel happy :-)

The screen is actually pretty small on the Eee. Too small for any development unless you're using a curt language and exclusively single character variables :)

No screen and no keyboard.... the add-ons for gumstix would be heavier than a MacBook.

My point is just that the cpu, mobo, battery, and drives of a laptop could easily fit in 1/10th the size of a MacBook sans monitor & keyboard.

I'm with you. Biding my time until I can upgrade from my trusty 12" PowerBook.

Subnotebooks are definitely the way to go!