The Qtum mainnet binary (Ignition v1.0.1) has now been released.
I'm running a wallet/node on the RPi 3 using the qtum-0.14.3-arm-linux-gnueabihf.tar.gz binary found at https://github.com/qtumproject/qtum/releases/tag/mainnet-ignition-v1.0.1 .
The instructions in the post above are exactly the same for the mainnet binary release, except for the 'tar' command (i.e. make sure to specify qtum-0.14.3-arm-linux-gnueabihf.tar.gz instead).
Also, if you ran a previous version of the Qtum wallet/node (e.g. Skynet), then make sure to delete (or rename) the ~/.qtum directory before starting the mainnet (Ignition) wallet/node.
NOTE: The post didn't specify it, but you need to edit /etc/systemd/system/qtumd.service using sudo (e.g. $ sudo vi /etc/systemd/system/qtumd.service).
RE: Qtum Staking Tutorial using qtumd on a Raspberry Pi 3