Some good news. I've got a simple C++ app working and modded to taste that can feed perl the recognized phrases. From this and what I've done so far, I'm certain I can do this entire mod, so it's full speed ahead.
The only questionable bit is, will people bother to train their voice recognition systems for an hour or more before trying this to ensure good recognition... it's very boring.
But once it's done the recognition improves a lot and that will be very important, since certain words are hard to get right ("gyroscope right 10 degrees" is not easy for even the most advanced speech recognizers out there since it's a sentence fragment, let alone something it may not see combined in that way very often.)
Fortunately I'll allow people to change it, so if everytime you say "gyroscope right 10 degrees" it hears "jerry scope light 10 daires" then you could add "jerry scope" as an alias for "gyroscope" and it would just work even when the speech engine gets confused (assuming it always gets confused the same way)!
Anyway, I'm excited about this project. I'll probably go silent running for a week or two while I pound the pavement on the first version.