iPhone OS Thai Keyboard, not easy as before

In iPhone Simulator (ASPEN), I used to create a fake Thai keyboard. By that time, it was easy. I just duplicated a Russian keyboard. Modified it then I got (fake) Thai keyboard on a list.

And now, a final OS comes. How about the old method? No, I can't use it anymore. When I deeply dig into UIKit file. I don't find anything useful for hooking Thai keyboard there. It is so tight with the current what it has on a firmware.

There're guys at smart-mobile doing this. They mainly edit current artwork file and patch current keyboard but that is an Englisha Russian keyboard modification! (Inspired by old Mobile Enhancer.) So right now, there is no hope for Thai keyboard toggle switching. There is only an Englisha Russian keyboard hacking which I don't prefer.

I hope Apple will fix it. I hope they will cross a business boundary.

BTW: You cannot directly use a modified Simulator keyboard (binary executable) file with a real iPhone OS file.