There's something that nags me about the default behavior of UIDraggablePanel:
If the content doesn't fill the entire clipping area and I swipe to the right, the content bounces back and sticks to the right edge, when I would expect it to go back all the way to the left edge. - This is the default behavior on iOS, so everyone who's used an iPhone or iPad would expect it to behave that way (same for top/bottom). Could you please fix that?