ARK is a very interesting project... and it's founder has just started Persona, running on the ARK Network. I was going to invest in it, but since the token price is fixed to FIAT... and after such a hard correction of ETH, I decided it wasn't a good deal:

Anyway, if anyone is interested, he's the link:
https://persona.im/index.php

I might still join, depending on the value of ETH in a week or so.