So, the first attempt has arrived ...
I've created a stand-alone manager for 360 degree panoramic tours, which allow you to import equirectangular images from your camera, create a clickable tour, and export to Pannellum or Marzipano formatted files for upload to a web server.
It's written using Qt and OpenGL, and is available free of charge.
For details, visit www.trumpton.uk/panomanager !
If you like it, please consider making a donation to Guide Dogs for the Blind!