I've hacked up a solution to move Keepnote notebooks into Evernote .enex files.
These can be then imported into Evernote.
You can find it with instructions at
https://github.com/neuralshock/trombone. It's a fork of an utility that moves notes from Tomboy to Evernote, so you may have heard of it already.
Caveats:
- pictures aren't supported.
- no binary release - install Python for your OS if you don't have it already, and the required dependencies with easy_install or pip.
- I don't provide support for it.
Hope it helps anyway.