After having passed this device so many times on the way to my favorite post office, I thought I record it for future generations.

For everybody to see, this is a box fitted with two phones (the second one being on the other side) and a cash machine. Obviously the company behind it combined the two applications based on the usage of the same infrastructure and thought this would be a good idea. Which it might be - with the cash machine doing significantly better.

Since the usage of the two services is in terms of interaction very similar, I thought it might be quite interesting to put this academic question forward: How would a device look like which combines the two services? How would one use it? What would the user experience be like for the respective services?