Take the QDOS Genesis vivre en musique portable speaker out into the world, and you'll be carrying 360-degree surround sound wherever you go. Plug your iPod into its dock connector, and its four AA batteries will power four amplified speakers, each driving 3 watts of power, for eight hours of continuous music.
Back at home, it functions as a dock, where you can synchronize and charge your iPod for your next foray out into the wide open spaces. It's $164.
Product Page [QDOS, via Shiny Shiny]