I'm coming from a Bionic so please forgive me.
I got my Samsung S4 today and am very happy with it. I did discover something that I thought was an ICS (and JB) widget and not just a Moto widget.
I'm referring to the Favorites widget. You see 4 pictures, but if you swipe down it turns into 20. That way you have easy access to the numbers you call the most.
I know that you can put 12 in the Easy Home place, but is there a widget that I described? If not stock, one in the Play Store? I saw one that held 8, but that was a 4x2 widget that had them always up. The one I used was 4x1 when closed.