Took the plunge and updated to 1.4.5 about 12 hours ago. This update ignores your reboot miner function and resets it back to zero in the background, but it still shows your X time. Changing it, and changing it back fixed it and now it's back to rebooting after a specific time.

GUI wise there is now duplicity. The whole dials look can now be removed, and use the advanced tab as the main control panel. You could add a 'lock/unlock' button for messing around with frequencies. Possibly using less resources being gobbled up by your front end on the RPi?

Otherwise a really solid update, nice one.