Minimalism has always been a guiding principle at Apple, and the new iPod shuffle is an outstanding example. The slim white shell encases a 512MB or 1GB flash-based player, with nothing more than a four-way rocker ring and play/pause button on the front and a power switch and battery-check button on the back. You pull off one end of the 0.8-ounce player to expose the USB plug. The shuffle has no display to tell you what song you're listening to, no playlists, and no EQ settings. Instead, you get a new version of iTunes that can randomly load the shuffle with songs; two positions on the power switch let you play them in order or randomly. The big idea here, such as it is, is that shuffle owners want to be continually surprised at which songs pop up from their music collections.