iPod/iPhone Airline Charger?

[macdaddy57]

Can anyone recommend an airline power adapter that will plug into the power outlet for seats on American Airlines that will charge both the 120-GB iPod classic and the iPhone 3G? I know there's an "Inflight iPod Charger" that plugs into the headphone jack but I'm not interested in that type of charger. I've also seen where Griffin sells a "PowerDuo for iPhone" but they don't say if it can also be used to charge an iPod and they don't make it clear whether or not it can be used on a plane. Their product description just says it works with a 12V accessory socket.

Thanks.