It can do multi-hop. It can also automatically authenticate across any number of phones, sort of like how radius works with fixed wifi (android hotspots don't support radius - you can only connect with radius as a client). You can also earn money from sharing your internet.
Have been following this project for a while, cool stuff!
I work a bunch with vpn-like networking on Android phones and it would be cool to have a bit of info on how I might get something like working on phones. I guess its probably not your typical usecase.
Currently since the project is a VPN client, I already intercept all of the packets, I have a pcap writer and can write to files or a tcp sockets and connect wireshark to it - but it needs a bunch of complication to setup the keys so that I can see through encryption, so anything that would make that process easier would be great.