Pretty good deal here,ZipZoomfly has the Asus EEE PC 900A Netbook (EEPC900A-WFBB01) Intel Atom N270 8.9″ Miniature Laptop (Black) for $174.99. Free Shipping. Tax in CA.

The specs include 2.2lbs; 8.9″ 1024×600; Intel Atom N270 @ 1.6GHz; 1GB RAM; 4GB SSD; 802.11b/g; Linux; 4 cell battery; 1 Year warranty.

I would be tempted to pick one of these up and throw Moblin on it to see how it runs.