Just to repeat what Ebuka Allison said, it seems like the Cyan update for DP might not be identical to the standard Cyan update, which would mean your carrier is responsible for approving it and releasing it, which isn't Microsoft's fault. But yeah it'd still be nice if Microsoft could release an official statement saying that so everyone is aware of the issue. Maybe they could add a feature to the next Developer Previews where they could push a message to our phones when there is something important we need to know about DP. But anyway, for now if Ebuka Allison is right, we just need to be patient and wait for the carriers to approve it. I can't wait for it to finally arrive. The battery on my 1020 is sooo bad since Update 1, and apparently Cyan fixes that.