In the short time that I used iOS devices, I was amazed at how absolutely asinine it was that they could design a keyboard which didn't show the capitalization state of the keys. Here we are 8 years on, and they still haven't fixed it. It is such a minor thing to fix, and yet such a major faux-pas.
It is too obvious to have been overlooked (Windows Phone for example has this from very early).
Could it be to do with that somebody has it patented and Apple doesn't want to license that?
Quite often these kind of simple ideas are not implemented due to IP issues.
