Adobe says the photos are made by stitching together three RAW images. That in itself is pretty standard process for creating an HDR photo, but Adobe claims it can deliver “greatly increased dynamic range” over what your phone would typically put out.
The typical benefits of shooting in RAW remain here, too. You get a 32-bit file with more color information and more flexibility to alter the exposure or white balance. As usual, Adobe is using its own DNG format for the RAW files.