The biggest feature I will be looking for in this is a true push to android mobile devices. It looks like you can use the subscribe function for this, but I'd need an android example to get up and running quickly. Right now it seems like firebase is the only game in town for that functionality unless you want to roll your own with websockets or some sort of MQ. Google also strongly encourages use of firebase for that…
Also thanks for sharing the android use case - we definitely want people to use this directly from the client. We're working hard to get the auth model right for this.