Archos has introduced the ARCDisk, a 20GB 1.8-inch USB 2.0 portable hard drive that weighs 2.7 ounces and sports a footprint smaller than a 1.44MB floppy disk. It is apparently compatible with Windows only. Buyers in the U.S. can purchase the ARCDisk directly from Archos for US$199.95, and it's available to most European customers for 199.95 Euros, also directly from Archos.