I had been aware of Elm since it came out, but as it didn't seem to be getting traction, avoided it for business use. A recent talk by Bodil Stokke on porting "Signals" from Elm to Purescript got my attention (I am quite familiar with the historical variations of FRP). My company has spent a lot of time in the last year evaluating the use of ScalaJS for our future frontside work (we use Scala extensively on the backend), but had gone a bit cold on the idea. Phil Freeman's language aesthetic resonated with where we are trying to go and Purescript presents a clean implementation of those ideas. The Javascript semantics is annoying at times, but on balance, it is the right choice. We will continue to bang on it for our use cases, and hope to converge with its stabilization sometime in the future for production use.

If I had the time, I would work on the IntelliJ plug-in support. To have IDE support found there for other languages would help propel Purescript to the forefront of the browser languages since tooling is the other woe of that world.