The viewer can be used in any project either commercial or non-commercial, the only requirement is that the SwiftVR link on the toolbar must remain, and that the SwiftVR.fun screen also retains the SwiftVR copyright line. You can place your own logos on that screen providing you don't cause the SwiftVR copyright line to become invisible or covered.
That's about all the clarification of the usage terms that is needed. I am releasing the source because I want people to make panoramas! Do your own local area so we can have a tour :). Do your local golf courses, museums, walking tracks, beach, waterways, and maybe even some panoramas that extend underwater! Just use your imagination and have fun.