Looks like our wishful thinking has born fruit, at least sort of. The SOLIO, from UK-based Disruptive Technology Channels, serves as a battery backup for your iPod, holding sufficient juice to keep you fully charged. You can load it up by plugging it in to a wall outlet for four hours (UK style, naturally—adapters for us Yanks can be had online for less than $10) or, more importantly, you can let the sun do the work thanks to SOLIO's integrated solar panels. The solar option takes about twice as long, however. Less than $100 online.
Solio Solar Powered iPod Charger [DesignTechnica]
Wishful Thinking: Solar iPod [Gizmodo]