When using phonics programmes such as Letterland, it is still necessary to teach the correct letter names. I was taught that the correct name for H is aitch and haitch is a regional pronunciation. I am sure someone will dispute that.
However, in the face the experts, I am mortified that my colleagues and I have mistaught so many pupils over the years, when using Letterland. Oh well, it's too late now, the damage is done.
We were delighted when we ditched it in favour of a more suitable and appropriate phonics programme.
Now, dare I mention the pronunciation of the letter J.