[miratrix]

CPU is rather a small power of total platform power consumption these days. Switching x86 to ARM won't magically get you from 5 to 50 hours of active usage. If you compare MacBook Air and the new iPad, you'll see that the difference is actually rather small:

MacBook Air 11.6 - 35 WHr battery and 5 hours of Wifi Usage at 7 W [1] New iPad - 42.5 WHr battery and 10 hours of Wifi Usage at 4.25 W [2]

e-ink screen may make that last far longer... but if you've spent any time trying to use the e-ink Kindle browser, you'll quickly realize that the lack of fast refresh rate is a very difficult problem to solve in terms of usable UI.

[1] http://www.apple.com/macbookair/specs.html [2] http://www.apple.com/ipad/specs/

[crumblan]

As it is a netbook, I assume that the user puts much less demand on a GPU than he would on an Apple device. I was also thinking of using it on the road -- so no wifi.

[tadfisher]

Not to mention that the e-ink display would use an irresponsible amount of power should the user choose to, say, watch a video.