Everex offers a very low cost PC unit that runs Linux. The Everex gPC runs gOS. gOS is built on Ubuntu Linux 7.10.
The Everex gPC TC2502 sells for $199 at Wal-mart.
Besides being low-cost the Everex gPC is also supposed to be energy efficient and very silent (28db).
Additional Preinstalled and Linked Software
Mozilla Firefox, gMail, Meebo, Skype, Wikipedia, GIMP, Blogger, YouTube, Xing Movie Player, RythemBox, Faqly, Facebook and OpenOffice.org 2.2 (includes WRITER, IMPRESS, DRAW, CALC, BASE)
1.5GHz, VIA C7®-D Processor, 512MB DDR2 533MHz, SDRAM, 80GB Hard Disk Drive, DVD-ROM/D-RW Optical Drive, VIA UniChrome Pro IGP Graphics, Realtek 6-Channel Audio, (1) 10/100 Ethernet Port, (1) DB 15-Pin VGA Port, (6) USB 2.0 Ports, (1) RJ-11 Port, (1) Headphone/Line-Out Port, (2) Microphone/Line-In Ports, (1) Serial Port, (1) Parallel Port, (1) Keyboard, (1) Mouse, (1) Set of Amplified Stereo Speakers