I just committed the KML files and graphics for the HP-22 and HP-27, the graphics being based on Maciej Bartosiak’s graphics for other models. I have poor graphic art skills, so the 27 artwork could be better. But at least there’s finally something; I’ve had the ROM dumps for a long time but without suitable graphics they weren’t very useful.
The upcoming release of Nonpareil probably will not have any other new models. I need to convert to using Maciej’s images for the Classic series, fix the KML files for the Voyager series, figure out a better way for the build system deal with the ROM files, and get the source tarball and Windows cross compilation working again.