One of the first new features of DNN 4 I noticed was the ability to change the Module Title without having to go into Module Settings.

Hovering over the Module Title shows that it is editable:

Clicking on the Module Title allows you to edit the Title:

The Title is changed once the focus is moved off of the Module Title:

Even though a small change, this will undoubtedly save time by not requiring the extra clicks to get into the Module Settings. Very handy!