This seems like it would work really well to transition users from Google Earth and other closed-source globes to more open data sources. Specifically, this would be hugely valuable for developers in the military, disaster response, and intelligence communities and opens up the possibility for more quickly prototyping geospatial "Common operating pictures"

That said, as a day-to-day developer short of star mapping or orbits I'm not sure I prefer the globe format to a flat earth projection. Cool to see this open source and I'll definitely keep it in mind.