Yup, they are great people that I feel really honoured to be able to collaborate with and learn from. We are working on a project alongside them right now to make the initial React Native getting started experience easier! The goal is to reduce the TTHW (Time To Hello World), which is currently absurdly high because users need to install Xcode or Android Studio.
We also discuss pull requests that we think need attention or that they want us to comment on, roadmap, problems that we run into building apps with Exponent (or that our users run into), and all sorts of other things. You can see some of the discussions on this Facebook group: https://www.facebook.com/groups/reactnativeoss/ -- we also chat a lot in Messenger.