Are there many R915 users out there? It should be noted that the root method for the R910 should - and most likely will - work on the R915, but that CWM builds, kernels, and ROMs from the R910 should not ever be crossed between the two. I just learned of the R915 today; it appears that the two are different enough to warrant a separate investigation. We will continue to look into the R915. It may be necessary to have an R915 development device in order to produce custom materials for it. EDIT: Mountpoints on the R915. As you can see, Samsung decided to arbitrarily switch things up... again. This confirms development will not be 100% portable between the two devices. EDIT2: We are in possession of a system image for the R915, thanks to IRC user Gar.