Some news from Onyx:
" ..We have public repositories for our system:
1) sdk.
https://github.com/onyx-intl/booxsdk
2) boox-opensource.
https://github.com/onyx-intl/boox-opensource
3) cmake_modules.
https://github.com/onyx-intl/cmake_modules
The kernel source for imx508 will be made public soon.
Please read:
https://github.com/onyx-intl/booxsdk...EADME.markdown
to build the SDK. ...
Based on the wish list, we have implemented some features and fixed some bugs.
features:
* click state icon at status bar to show sketch/annotation menu
* hide/show annotations (including sketches)
* merge highlight together with sketches into a new pdf.
... "
Probably will be available within today for your testing.