Well @popcorn seems to have been busy with this. I'm also curious about the latest state of this project 
After having a second look the project seems to have gone the RN2483 route also.
It would be nice to create a node based on a cheap SX127x board like this and an ESP8266. That would be possible for less than $10 (as is mentioned in the wiki, but we still have to prove it 
ourselves)