It's impossible to map every controller that comes out. The Cross/Mixvibes people have done a pretty decent job of hitting the most popular ones that aren't put out by a company that does their own software (Native Instruments and M-Audio specifically). Keeping in mind that these controllers also represent a very small portion of the controller market as a whole.
That aside, there isn't any standard mapping, and some hardware companies even change from controller to controller. For example, you'd think that Vestax would have a standard for their crossfader, channel faders, pitch and the other key controls from controller to controller - they don't. Each one is different. Which means a mapping for one doesn't work for anything else.
Fortunately, they tend to stick to one process for the jog wheels, but even that isn't 100%.
As for standards, there isn't one. Most use a Note on/off for their LED's but Denon does it completely backwards sending state and then light.
And text? Don't even get me started!
And while you can 'guess' at the MIDI values using a MIDI map, until you get a controller in your hands you can't actually test the mapping - which means it's not practical to release and 'hope for the best'. Especially if it's going to be an 'official' mapping.
Just some of the reasons why they can't map everything.... In the meantime, I have a friend that may be sending me his Hercules controller to map. He'll cover shipping both ways, and I figure a week turn around. I'll map the controller for Cross (if it's not already), Torq, and Traktor (which is what he's wanting).
What I'm saying is if you can't do it yourself, see if you can loan your controller to someone else who can. If they know what they're doing and have the time, a few days should get the mapping done and tested pretty well.
c00l People MV Society 