B&H and Adorama have begun shipping the Pocket 4K, as have other retailers. It will take a while to get to all the pre-orders but at least the process is done and Blackmagic should be applauded for its efforts to get this wonderful camera out as quickly as they did.
Finally some substantive reviews and guides have been released. Don’t be fooled by those comparing this to the Panasonic GH5/GH5S. Those are great video cameras but they are not capable of the same image quality. The convenience and already far more than adequate image quality may make the GH5/GH5S better for your needs than the Pocket 4K.