The good news is that Raspberry Pi's highly anticipated teeny-tiny Linux computers are on sale now, just barely making the promised February launch window (good thing it's a leap year). The better news, is that the $25 Model A version has gotten an upgrade from the planned 128Mb of RAM to 256Mb matching the Model B, which still throws in an extra USB port and an Ethernet hookup for $10 more. Built on a Broadcom BCM2835 700MHz ARM11 processor, they're intended as a cheap computing option that require only a keyboard and RCA or HDMI-conn
