Love the "elevator pitch" of this concept: your data is valuable, so why not make money from it?
I think the crypto community would be all over this, but the strategies for reaching a broader audience will be essential for growth.. How do you get someone who is only vaguely (if at all) familiar with BTC to use an app that is based on an alt-coin to control something that they barely even know has value? Seems like a steep education curve to reach most users, so trying to simplify and create a user-friendly experience is going to be a major hurdle.
Looking forward to following along
I think the crypto scene itself can benefit from a working Datum platform. As soon as people realize that they can make money with the data they would give away anyway, they will start to inform themself about Datum and hence crypto currencies in general. But you are right. An user-friendly app to help people get to know everything is important.