Netbook is just a buzz word for something that pretty much existed anyway since the late 90s.
IBM 240 series come to mind, as Does the later P2 based Libretto from Toshiba. Truth is Netbooks were just some cheap tat (from companies that always make cheap tat) to get a foothold in the market with marketing hype. And this allowed the already useless laptops to stop dropping in price.
I already owned an IBM x40 and could get anyone who wanted one in warranted mint condition for less than the price of some cobbled together rubbish from Acer et al LOL. Centrino CPU, extremely lightweight yet thoroughly useable 12" screen and excellent keyboard, optional dock for DVD/RW capability. ATI Radeon graphics. The list goes on, Netbooks mean nothing to me, the x40 will outperform even the most expensive one out there and you can even run a business on it...now that's what you call a quality machine, and all years before ASUS and Acer marketing teams had their 'brain wave'

The only other thing is....Windows 7 on Intel Atom....who's stupid idea of a pairing was that then lol. If you have to run Windows for god sake run XP....nothing uglier than bloatware running on tiny elegant machines

(a laptop with shared memory/integrated graphics IS useless)