Wow. That's another one that flew past me. A graphical development environment for Perl. Really graphical, with a graphical debugger, editor, source navigation and everything that goes with it. Pretty impressive. Such a shame that I switched from Perl to Python as my primary programming language some time ago...
Oh, and after I took a quick look at the demo: I think just about everything is right there! The interface starts right up with a graphical shell where you can quickly hack Perl scripts and play around. The graphical debugger is right there attached to it too - if you're into debuggers and stepping through code and looking at variables, you'll be thrilled here.
Actually, there's only one thing I'm missing there: a browser for the Perl modules and the Perl module path and especially the Perl documentation in the modules. Ok, it has some support: if you open the context menu on a module name in a use statement, you can view the documentation in the terminal. And you can load the module into the environment. And jump to directly exported names. But the documentation is only displayed in the terminal or alternatively in the browser. Ok, that's significantly better than nothing, but somehow an integrated documentation browser would really make the whole thing perfect.
In any case, a great environment with a lot of convenience for Perl programmers. Did I mention that I wish something like this existed for Python?