> I contend that of the 26 modern letters, at least... Who uses only letters? You want an alphanumeric display, to show 26 (27,8,9...) + 10 = 36 (37,8,9...) ch

> I contend that of the 26 modern letters, at least... Who uses only letters? You want an alphanumeric display, to show 26 (27,8,9...) + 10 = 36 (37,8,9...) characters. That's your actual everyday "alphabet". And then you're totally screwed from the start: 0OD, 1iIl, 2Zz, 5Ss, 6bG, 8B, 9qg...