Why aren't they designed for Pre-Rendered mapping? They do the exact same thing as 90% of all image manipulation programs. Hell, I use Photoshop for everything. Whether it be 3D model texturing (which isn't image manipulation), drawing (once again, not image manipulation), designing maps and logos (not image manipulation, either), spriting (guess what? Not image manipulation!) and, in extreme cases, mapping (Oh, did I mention it's not image manipulation?). Apparently, you have a very narrow view of what Photoshop is capable of. Especially when there's plugins that can probably do exactly what this "Tiled" program can do in an interface that's familiar to many people, so there's no need to relearn interfaces. But to each their own!