I understand the history of the backspace and delete keys, but it strikes me as odd and inefficient that keyboards (especially software based ones) do not have a dedicated key that can remove to the right of the cursor as well: a 'forwardspace' key if you will. Has any major OS vendor / hardware keyboard manufacturer attempted this? Was it part of keyboards before the QWERTY adoption? (note: the insert/overwrite would be similar but not functionally the same as this proposal because a forwardspace and backspace would be 'equals', at lesst in terms of names and prominence on a keyboard.

And how do backspace characters work in right-to-left languages like Arabic, Japanese, etc.