Bluetooth - reprog USB interface and add USB dongle and adapter?

Hello:

I have found numerous articles about reprogramming the Uno Rev3's AVR to make it a USB HID device. Great. I get it.

So if I do that, can I then put a PC type off-the-shelf bluetooth dongle onto the Uno's USB port using an adapter to get from the large connector to the small connector?

I'm thinking maybe there is a power issue... that the Uno won't supply power there. Is there also a host/non host issue also?

Thanks!