G4LEND: status and documentation

There seems to be no official documentation on G4LEND. I understand that the recommended way to go at the moment is G4NeutronHP, but I would like to learn more about G4LEND, and if I should keep an eye on it in case it would become a more suitable alternative for my applications.
The only things I can find online are PDF presentations which seem to suggest it is still not for general use.
Any ideas?