Powerduo Reserve by Griffin lets you charge your iPod at home or in the car, as well as keep a little battery with you for emergencies juice ups.
AirCurve is this little glass block. You shove your iPod in and it makes the speakerphone A LOT louder. It is freaky how well it works.
Griffin also makes these nice leather / polycarbonate iPhone cases. Kinda flossy but practical.