"New Apple keyboard" will not power devices even on powered hub?

I'm assuming the decision to power a device through the USB port is software-based since my "new keyboard" refuses to power any high-drain device despite being plugged into a powered USB hub. Has anyone else experienced this? Is this something that I can hope Apple will eventually address or is it the (only) downside to buying this sweet keyboard?

A powered device only supplies high power the devices directly attached to the USB hub. The keyboard will only pass what is is spec'd to pass which by definition is a low amount of power.
Well, looks like that's not entirely true since Apple says:
"Devices that draw high power from the USB connection, such as iPods, hard drives
and some flash drives, can only be used with the new keyboard when it is attached
to the aluminum iMac."
This suggests that the keyboard can, in fact, pass the power to the device when hooked up to the new iMacs and that the limitation is somehow software (or firmware) based and not a function of the USB architecture.
So, I guess in a way I have my answer: Apple has somehow limited the new keyboard when it's not used with an iMac. That, or it's an issue of which they were originally unaware and one that they may someday "fix".

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