Isn't AMD support good enough these days ? I got Ubuntu (10.10 or 11.04, early Unity, was very klunky, dropped it because of that) to dual screen on an E350 nettop w/o too much hassle, and everything else seemed to be working too (ethernet, wifi, usb, sound). I think Brazos netbooks are rather competitive with Atom, with a much better GPU, a similar CPU (no parallel threading though ?), but a bit higher power consumption ?
Warning: I did *not* test ACPI or whatever power management is called these days. Wifi is a separate chip so check that your specific model is supported. Ditto for sound, surely. But both of those don't seem to be raising lots of issues these days.
some perf graphs here: http://www.blogeee.net/2011/08/amd-e-45 ... formances/
(sorry, in French, his conclusion is: AMD kills the Atom).
in another article the guy quite likes the Acer Apire One 522 and 722 (10.1" vs 11.6"), esp. screen. http://www.newegg.com/Product/ProductLi ... 0Processor
. RAM seems to be upgradeable only on the larger one, but I'd double check, I've read the smaller one is (was ?) upgradeable too.
EDIT: googling for Acer Aspire One 722 Linux (https://www.google.com/search?client=op ... +722+linux
) seems to confirm it works, but requires some tweaking of the wifi config.