8. A computerized method as in claim 1 wherein: said receiving of user generated alphabetic signals includes receiving a succession of one or more such signals, representing characters of either case, in association with a given individual word signal; and said pattern matching includes: performing said pattern matching to select an alternate choice group of one or more vocabulary words which most probably correspond to said given word signal; and substantially limiting the words selected for the alternate choice group for said given word signal to words whose associated spellings start with the sequence of characters represented by said succession of alphabetic signals while not substantially limiting said selected words to words starting with the same sequence of cases as that of said sequence of characters.
9. A computerized method as in claim 8 further including: displaying said sequence of characters represented by the alphabetic signals, if any, received so far for the given word signal; displaying the words in said alternate choice group; and allowing a user to select one of the words in said alternate choice group.