Our desire to bring this service to market did not mean that we would find it easy to do. We encountered unexpected problems, and those lead to delays. We usually keep quiet about what we are planning to bring out, and in hindsight that would have been a good thing to do here as well. Our intent was certainly never to mislead anyone about it. Having failed before in our estimate of when this could be made available, we are not going to say anything about that now, other than it is still a top priority for us.
Having said that, you should also know in advance that we will not be able to backup and restore the Zigbee radio settings. It turns out that the hardware we use for Zigbee does not support this capability.