PanoSalado will display cube faces, spheres (equirectangulars), cylinders, and MOVs (QTVR). In SpinControl:VR, simply drag a folder of cube faces, or the individual images onto the panorama area.
Your images can be in PNG, JPG or MOV filetypes. Except for creating previews, SpinControl:VR looks to you to prepare your images to your professional specifications.
note: "In AIR 1.5 and Flash Player 10, the maximum is 8,191 pixels in width or height, and the total number of pixels cannot exceed 16,777,215 pixels. (So, if an image is 8,191 pixels wide, it can only be 2,048 pixels high.) In Flash Player 9 and earlier and AIR 1.1 and earlier, the limitation is 2,880 pixels in height and 2,880 pixels in width."