As far as I can tell, Ashley has created the exporters when they have been available. I doubt a tonne of work has gone into them, but an incredible amount of work has gone into optimising games, adding in great features such as the multiplayer tools as well as fine tuning the tools we already have.
Not sure what the point of this post is. Sure, we have a lot of plugins, but there are a lot of devices out there at the moment, and with smart watches coming out over the next year, people may want to develop for those too.
Frankly, C2 has been in a state to allow me to make the game I want since around version 100. All these extra updates have just been appreciated.