I had some early model MSI Wind Netbook. What a great little machine. They were nice and hackable – I remember replacing the Wifi module with an OS X friendly model and getting a nearly perfect Hackintosh experience for a few hundred bucks, and in a form factor smaller than anything Apple had at the time.

I think Chromebooks largely displaced the Netbook segment, which is sad. Feels like today you can get: A cheap, bigger laptop; An expensive, small ultrabook/Mac; A Chromebook.