... it does nothing for copying from CF to CF.
Yes it does (through a card reader): http://www.robgalbraith.com/bins/con...id=7-6455-6965
"Transfer photos from one CompactFlash card to another, with various brands and models of card readers on either side of the USB Bridge. We've encountered only one incompatible reader so far: a Lexar USB 2.0 Multi-Card reader (running an older version of firmware in the reader)"
... in fact it'll copy most anything from USB to USB (ie USB On-The-Go) even to another memory stick without
a computer! I didn't suggest the "iPod"... I was merely offering a battery driven "Widget" which met the request. :-):-):-)