Stuff with the Perl Foundation. A couple of patches in the Perl core. A few CPAN modules. That about sums it up.
I like gvim. Maybe emacs is better, maybe it's worse. I don't know. The simple fact is that I know vi, I find that I am more productive with this editor than with other editors that I have worked with, though I still confess to enjoying GUI treats. For example, I like to be able to cut-n-paste large paragraphs by selecting them with a mouse. The only gripe I've had with gvim on my Windows box is a long-standing bug where the contents of my clipboard would sometimes be inserted into the document. I've been very happy to roll out development code with stuff like this:
$push @untainted => $value =~
Where the heck did that URL come from? Crud like that would just spontaneously "appear" in my code. A coworker saw this happen and noticed that I was using a wheel mouse. It seems that I can press down on the wheel and it acts like a middle mouse button
Mac OS X (Score:2)
That's a feature of Unix editors, actually. That's the way most XTerms work -- clicking the middle button pastes from your clipboard.
FWIW, the carbonized version of Vim [swdev.org] that runs on Mac OS X offers pretty much all the GUI goodness that you could want. Not that I'm very experienced with it, mind you. I'm an Emacs user. :-)
--David