fit-PC Slim is being billed as the world’s smallest, most energy efficient PC available - and at 13 ounces it looks like is. The dimensions of the machine measure (4.3 x 3.9 x 1.2 inches). It draws 6 watts of power, and runs a 500 mhz AMD Geode. You can get it in a variety of configurations starting at a 265MG config for $220, all the way up to a 512MB system with Wi-Fi and a 60 GB hard drive with Ubuntu or Windows XP home installed for $295 or $335.