FRP - Call for GUI examples

Can GUI programming be liberated from the IO monad? Functional Reactive Programming (FRP) promises as much, and I’m trying to make this dream a reality with my reactive-banana library. Having released version 0.4.0.0, I am now looking for example programs to direct the future evolution of the library.

Do you know any small GUI programs that you would like to see implemented with Functional Reactive Programming?

I’m sure that some of you

are interested in FRP and would like to learn from a few simple but beautiful examples

or have written small GUI programs that they are unhappy with because they were not purely functional

or have thought about FRP before and concocted a few examples that are very tricky to implement with FRP

or have written a nice little GUI application that simply makes a great example.

I would love to hear your examples, so that I can try to convert them to FRP style and test my library against them!

Strictly speaking, it doesn’t have to be an example with a graphical interface, I’m also interested in audio and animation examples, though I’m currently focusing on GUIs.

Here a few examples of what I am looking for: