EclipeFP exists. The main problem is that there aren't good ways for Haskell analyzers to communicate with a Java/C++ UI in memory. So you get clunky+slow netw

EclipeFP exists. The main problem is that there aren't good ways for Haskell analyzers to communicate with a Java/C++ UI in memory. So you get clunky+slow network/IPC APIs (or worse, communication via filesystem) for stuff that ought to be tiny in-process method calls. And writing the whole UI in Haskell is...not Haskell's strength area.