Hi everyone,
By using some of the available guides on the internet, I was able to install Open Media Vault onto the MBL.
This is a very useful, because WD is pretty much refusing to update the OS. This leaves us with an outdated OS which is a security risk to say the least.
Open Media Vault can do anything that the WD UI could do. The OMV plugin system allows you to add a lot of functions to the device.
You can find my experiences with OMV on the MBL here (it's work in progress):
http_//forums_openmediavault_org/index.php/Thread/10822-Open-Media-Vault-on-Western-Digital-My-Book-Live/
If anyone want's to join in with testing and tweaking, feel free to!