On a regular basis I receive a request to put more Ajax into InDefero. Each time, I answer that if not really needed, I do not see the point. But the main reason is that doing Ajax the right way to make it accessible to corporate users using text-to-speech system is a real challenge I do not have the tools to really complete correctly.
And yes, for me this is not just marketing talk, here is the head of the letter I wrote today to finish a contract with a very good customer of mine:
So please apologize for the lack of Ajax everywhere in InDefero, but now, you know why. In the background, you can see my 40 year old braille typewriter.