@T86
No, KPV didn't split into koreader and Librerator. Librerator is a fork of KPV. KPV evolved into koreader. Current release of koreader supports only touch devices, but support for all kindles will eventually be added, too.
The old codebase, KindlePDFViewer is still maintained, and it's latest release is newer than Librerator-R2.
Librerator, as a fork, has some features that KPV doesn't. It's kinda like my version of KPV
.
Regards,
Kai