Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
From the website:
Will PlugBug charge my iPod or other USB devices?

Yes. PlugBug will charge ‘any’ USB chargeable devices like bluetooth headsets, iPods, non-Apple smartphones, etc. Simply connect your USB charging cable to PlugBug and plug the charger into any wall outlet for a stand-alone charger, or snap PlugBug onto your MacBook Power Adapter for the ultimate "all-in-one" charger.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.