Slacker's portable music players are set to be available on their website on January 31st with 4GB ($199) and 8GB ($299) versions. Slacker is based on customizable streaming radio stations with the basic version being free. A Premium Service includes all the features of basic Slacker Radio, and adds unlimited skipping, and the ability to save radio songs to your Slacker device library and play them whenever you want for $7.50 per month. See demo video on Slacker Portable player. This is the lazy person's iPod alternative.