No multitasking. Can't drag and drop files or folders.RIGHT THERE is one of my biggest problems with mobile software. Most apps are reduced-functionality compared to desktop versions. (The app producer will say, "The desktop version was way more than most people needed anyhow." While simultaneously adding social-networking features to everything in sight, whether people need/want it or not.) And each cut-down app exists in its own little world, usually oblivious to anything going on elsewhere.Depending on someone's perspective, this is either the future, or the return of the pre-multitasking systems from the 1980s.