There's one possibility that occurs to me: the "FlashPath" is a floppy disk shaped adapter for SmartMedia flash cards, which goes into a floppy drive.

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The main problem with this is, I've never seen one. How readily available are they?

Apart from that, seems to me someone needs to get busy with a microcontroller and the serial port, or a logic analyzer and reverse engineer the floppy drive connection protocol.

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And the main problem with this is the "somebody" part. And like the FlashPath which would need a custom driver written for it, the floppy/flash would require hardware be built as well.

From my limited viewpoint, it seems to me we are closer than ever and need look no further than the John Bass solution for that somebody to write a driver for a contemporary drive interface. Think of it, not only is this a completely engineered solution but it has value as a SCSI interface, not some third party proprietary solution that has no practical applications outside of this limited one, including potentially using an EN/SC adapter on it to bring true Ethernet to at least the 512K. If "somebody" were going to put any time into this project it seems to me like this would be the one to focus on. Thanks again to Charlieman for having the insight to suggest it in the first place.