A major problemfor me is moving through the various screens. What happens on a horizontally held display when sliding from right to left is that it very easy to start that motion on top of a folder or icon and because you're swipping left it goes right into the garbage can with no warning. Later in the day you realize what you've done but have no way to recover your data.
Recomendations at least a war I gbefore it happens. Have tthe ability to move the trash icon.