Got this answered on another forum:
The root of it is that Apple has stopped supporting the Firewire charging pin in their hardware, so any accessory that charges with firewire power instead of USB power no longer charges the new apple products.
No software change to fix this, it has to be hardware as the different charging pins on your ipod are in different locations of the plug and require different power inputs.
Accessory manufacturers used the Firewire charging pin because it provided faster charging and was cheaper to manufacture than USB power, but now they realize that Apple was actually serious about their warnings that they were going to stop supporting firewire.
Here is the solution:
http://scosche.com/products/productID/1667