flashx20 - Floppy and screen for the Epson HX-20

[Jason T]

On Sat, Dec 15, 2018 at 5:47 PM Norbert Kehrer via cctalk
<cctalk at classiccmp.org> wrote:

> With that, you get a big screen (the PC monitor) and disk space for
> programs and data on the PC's hard disk, which can then also be used for
> data and program exchange.

This is great - thank you for writing it!  I have at least one HX-20.
IIRC it was used for Motorola radio programming and had custom ROMS.

Do you know what other Epson portables (if any) used the same protocol?