For the past year Charles KE6QZU and Joseph KE7MQZ have been working with mesh on the Raspberry Pi. There have been a few challenges but it is working and able to communicate with other v0.4.3 nodes. Currently the web interface is basic and most of the settings are changed via script or config files.
Over the next few months they will be working on a simple web interface like the one used by BB-Hamnet and then making it available for testing by a select few prior to release.
If you are interested in testing please leave a comment.