A video is worth more than a hundred words:
for those who still need context, I've ported the application "kindlepdfviewer" to run on our kobos. Right now the port is quite rough.
But the thing is coming up nicely and I thought there was no reason to wait to announce it

I'm attaching precompiled binaries if someone wants to have a play, the source is available at my github account, right branch is "new_ui_code:
https://github.com/giorgio130
More instruction on how to use this is on post #6!