For Tasks that have linked subtasks, when you select edit on a subtask you can't currrently see the parent it is linked to from within the edit screen. On the iPhone app there is a field "Parent". It would be more useful in both (Web and iOS) if you could then click on the parent to be directly navigated to its screen. Similarly where the subtasks are shown within the edit screen for a task, it would also be useful if you could click on the subtask to directly navigate to the edit screen for that.