Some react-native developers were at last months React London User Group. It's apparently being built there but they are working through some perf issues.
When asked when it will be released they said "You will know when its released, it will be really obvious"
It's taking them a long time since the announcement of the new framework at React conf. They said they would release an Android compatible version soon and still we're waiting for any updates beside the usual cliche.
Sorry for the inconvenience. If you need something to fill the time while waiting for them to deliver your free software, maybe you should try contributing to an open source project.