Speaking of file management directly from the home screen, Nintendo needs to add a way to delete apps without digging into the settings menu.
In fact it would be stupidly simple to pull off if you think about it. Notice how the bottom task bar disappears when you've gripped an icon? Nintendo could just make a drop bin pop up there instead. As for the built in, non deletable apps, the bin could simply not appear at all when gripping them. There we go Nintendo, the perfect solution. Take it, it's yours.