A practical solution for spelling? If only there was some sort of book, a book that not only provided the correct spelling of words, but their proper pronunciation and definition, too . . .
Sometimes, old-tech is still right-tech.
Didn't Dr Johnson attempt to create such a device as a practical solution some centuries ago.
http://www.youtube.com/watch?v=MH5AaZS7RpAAnd I believe it still has not even today been fully completed.