The Reverb Solar Powered iPod Dock
It has built in solar panels so it can be used outside your home power-cord free! It fits a majority of iPhones and iPods but also comes with a 3.5mm audio jack so you can use it with just about anything. It goes on sale April 2010 for $2,299 and you can pre-order now with a deposit of $500 (a serious leap of faith that it sounds as good as it looks). Looks great though!