Spherical panoramas are not currently supported because of the limitations of CSS3D (link), and this forces authors to convert spherical images to cube maps. Such a conversion is extremely labour intensive for panoramic video content, which is predominantly spherical or cylindrical. Our application is built on live panoramic video in the Flash viewer, and this limitation is a major roadblock to migrating over to HTML5. WebGL is now fully supported across most mobile and desktop browsers, and easily handles spherical panorama rendering. So it seems increasingly unnecessary to limit the functionality of krpano.js, in order to support CSS3D on the small number of device/browser configurations that don't yet support WebGL.
Klaus, can you see any problems with supporting spherical/cylindrical panoramas and videos via WebGL in your next HTML5 viewer release?
Best regards,
Fred.