Scratch is a cool graphical programming language for kids, made at the media lab. I haven't used scratch very much, but perhaps some of this will be useful to someone out there.
I made an RPM to install scratch 1.4 under Fedora Linux. This should probably work on any system that provides a squeak-vm package, so I guess the x86_64 tag is misleading. I've only tested it on Fedora x86_64 though. Let me know if you run into any problems with it.
The issues here exist for the RPM packaged version above. You can also get my source SRPM here.
I believe I've made the first FFT in scratch here.