I’ve been using textile more and more these days. It’s quite convenient for writing.
But what’s annoying is that there is no support for it in Vim.
It’s definitely a first attempt at such things. There’s a lot that it doesn’t do. But for an hours work, it’s started to highlight textile files well enough for me.
Update: PlasticBoy has a similar Vim syntax for Markdown. I should take a look and get some ideas from there…