You can already download and deploy, following guidance from this page - https://github.com/unaio/una-mobile-app - it's fairly technical, but we do know of a few apps that have successfully been compiled and approved.
We don't announce much yet and don't update una.io until the v10 final release is published, but if you're using the beta channel you can already jump in.
I spent a solid week and a half trying to get the iOS and Android apps compiled and barely functional. I finally managed to do it after reading more stackoverflow posts then I ever wanted to in a lifetime.
It was a learning experience for sure and one I'm also sure I'll have to repeat anytime my fragile House of cards shifts in the slightest but at least for the last couple days it's working okay for me and hopefully will get better and easier over time.
Two weeks now and I'm still on it. It's frustrating and I feel it should have been different. Yesterday, I thought of abandoning the project and build a web app but then, I'm not the type that quits. Hope I get it before the end of the year.