Previously, did a small release of Vocoditor and did some work on the new release that'd actually support custom tags.
(Apologies if this is vastly inaccurate or inelegant, I'm really tired.)
People talk about Integrated Noding Environment in Everything2.com.
Ahem, I'm not a Guru, but I just did my step toward that goal. I finally got fed up with XEmacs' "don't mess with user's auto-fill-mode setting from file local variables" policy, and wrote a major mode for this baby that does very little else except provide something ELSE besides text-mode to work in. If it isn't text-mode, it can't turn it on in the text-mode hook, right? Right! As an added bonus, I added link syntax coloring.
Too bad this is fairly GNUEmacs-like still... I noted xemacs has even more funky stuff.
Oh, by the way, why people call Perl ugly, when Emacs regexes are twice uglier? It's late in the night, so I couldn't figure out a beautiful way to say this:
Which is Emacs string slang, meaning roughly
Which in turn is
in Perlese. I particularly find it disgusting that  has syntactical meaning, \[\] is literal, while () is literal, \(\) has syntactical meaning.
Not letting this to be downloaded just yet. It'd rock to actually add sumbission thing and stuff. =)