Not here, but that's because I lack the USB hardware mainly

)
AFAIK the only thing you need is the USB hardware, an USB stack (Poseidon?) and a digital camera that acts as a mass storage device, such as most (again AFAIK) Olympus cameras do (That is what I have

.
I'm sure someone will come up with something more specific or correct me if I am wrong, but if you have the hw, the stack and a msd camera, I'll bet my dish of quick noodles it will work.
Sincerely,
-Kenneth Straarup.