Ever since I first talked to Bruce about this(and other Om/React users), I've thought that this type of approach could lend itself really well to visual image based regression testing.
The other cool thing is that with Om you can serialize record Om state transactions. By doing this you could see how people are using specific components. Perhaps you could cycle through the last 10 users or the 10 most common interaction patterns of a component and view those interactions on a card.
This could be a boon to interaction designers looking to see how people are using disparate components/pages within an application.