Is there a product that can be plugged into a computer and appear as a USB flash drive, while in reality it is also say a Samba / FTP server? Along the lines of the Eye-Fi card (www.eye.fi), but wired and more configurable. It could also be a special data-transfer cable allowing one connect a complete separate networked computer. The targeted computer must only see a USB stick, no special drivers, no network configuration changes must be required on this computer.
Clarification_001: The targeted computer (or embedded device) must be able to write to this USB “stick”. However it would be ok if the data were visible on the network with some delay, say few minutes. This magic stick could copy between the flash & network in batch mode, every few minutes. BTW: My immediate need is to harvest logs from hard-to-network embedded device.
Further research brought me to devices called
"USB Bus/Protocol Analyzers".
like: http://www.ellisys.com/products/usbex200/index.php These would probably do the job. They are expensive ($800-$3000++). Internally, they must duplicate the USB data, I infer that the device I am looking for should cost under $500.