the biggest and best example right now is the Android version of Li.st. https://play.google.com/store/apps/details?id=st.li.listapp&...

In general, people have been really happy using Exponent so far. It doesn't work for all use cases yet since we are still beefing up the roster of native modules that are included, but you can do most of the stuff that most apps need already, and we're adding more every day.