It seems that the editor of the moment is Sublime Text 2 and sadly I have to tip my hat to Gary Rockett for showing it off to me one day.. Since that day, I've been a 100% convert. [...] So, I decided to peak into the PHPUnit [plugin from Stuart Herbert] to see if I could create a DocBlox Plugin. It turns out you have to write Plugins in Python, which is interesting, since I know very little python. There seemed to be enough code there to get me going, so I now have a working DocBlox Plugin.
The result is a plugin that, once installed gives you a new context menu option to "Generate documentation" for the selected file. The console shows the progress of the build. You can get the plugin from Package Control or by grabbing it from github directly.