Yeah, except a Mac notebook goes in the $1k+ price range.
A netbook's in the $250-$500 price range. You can buy them at
Target or
Costco.
I've got a MacBook, but I got a netbook as a toy/hobby box for myself for Christmas (since it's what all the cool kids were getting
). It's a $350
Asus EEE 904HA (1.6GHz Atom, 160GB hard drive, Windows XP Home) that I really was only planning on using as photo storage during travel. But, just for jollies after reading this post, I downloaded the Lightroom trial version, and popped in the SD card from my G9 (that's 12MP RAW), just to see.
It's surprisingly usable, but I'd probably limit myself to basic editing (i.e., pick/reject, tagging), and leave the serious post-processing stuff for a larger screen. It's still a little cramped, tiny, and slow. So, as a primary photo editing box, I'd say it's not an ideal choice, but it's kinda/sorta (just) doable. Not particularly comfortable, though.