MSI Netbook with 10" LCD and Atom 1.6GHz CPU for $289.99 shipped.  This netbook is very portable at 2.3lbs.  Its features include an Intel Atom 1.6GHz processor, 10" LED-backlit LCD display with 1024×600 resolution, 1GB RAM, 120GB SATA hard drive, 802.11b/g wireless, 1.3-megapixel webcam, memory card reader, Bluetooth, and Windows XP Home.  More information is available here.

Originally posted earlier, this deal has been updated.