I've been using Graham Cobb's port of Tinc for the Nokia N770 on my N9 for quite some time now, but it's always annoyed me that you need to devel-su + develsh to fire up the daemon.

I haven't bothered rebuilding from source, I've just fixed the metadata files from Graham's package to allow it to install cleanly, and also included an Aegis manifest.

Modifications & binaries on github:
https://github.com/peterdey/tinc-harmattan