I think it's totally reasonable for developers not to invest in the platform at this point, but Apple is definitely in this for the long term. Everyone is aware

I think it's totally reasonable for developers not to invest in the platform at this point, but Apple is definitely in this for the long term. Everyone is aware this is not a mass-market consumer product; the hardware is probably great, but in every other respect this is effectively a public beta. If Apple scraps the idea, it'll be because the second and third gen were huge failures, and that's probably at least five years away.