dell-mini-inspiron1 MAC-OSX-Leopard

There are a lot of netbooks on which you can install and run OS X, but if you're mindful of the handy comparison chart those lads at Boing Boing Gadgets have compiled, you'll know that the Mini 9 is about as ideal a platform as you'll find for a Hackintosh ultraportable: Everything from wi-fi, sound and the function keys down to the optional integrated mobile broadband card and the SD card reader are supported and work as they should. No hardware compromises at all. It's awesome. read this very nice tutorial at www.gizmodo.com

And it seems a lot of net book can are able to run with OSX, as it can be seen there