To add briefly to what John wrote, there is a webpage for Yampa: www.haskell.org/yampa which includes all of our publications on FRP/Yampa as well as a decent release of our latest implementation of Yampa (based on arrows). The release has ample examples of how to use Yampa for graphics, animation, and basic control systems such as used in robotics. Also, although most of the developers have dispersed, I believe that most of them are still interested in the ideas, and the yampa-users@cs.yale.edu mailing list would probably be responsive if anyone bothered to use it. -Paul Hudak John C. Peterson wrote:

From: John Peterson To: haskell-cafe@haskell.org Subject: Re: [Haskell-cafe] Functional Reactive Programming

Functional Reactive Programming is alive but in need of some new students to push the effort a bit. A lot of us have taken teaching or industrial positions so the old FRP team is a bit depleted.

I don't think anyone is working on Yampa directly at the moment. Although it's stable and working well it lacks a critical mass of nice libraries to make it attractive.

I'm still plugging on a wxHaskell port to Yampa (the wxFruit stuff). I've made some semantic changes to Yampa so I probably shouldn't say it's real Yampa but pretty close. I should have something to release later this fall.

Aside from that, we have a student working in the hybrid modeling area. That's good stuff but not likely to produce software of interest to Joe Haskell. Another student is keeping the robotics side of things alive but it's in the context of a very specialized robotic hardware environment.

So there you go!

John _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

-- Professor Paul Hudak Chair, Dept of Computer Science Office: (203) 432-1235 Yale University FAX: (203) 432-0593 P.O. Box 208285 email: paul.hudak@yale.edu New Haven, CT 06520-8285 WWW: www.cs.yale.edu/~hudak