I came across this a little while back, which may be of interest on
the subject of invented scripts. Apparently some years ago, James
Norquay, an artist with native Canadian background and with religious
inspiration (Baha'i), devised on his own a "phonetic script of
befitting beauty for English." See
http://pacificcoast.net/~tibachimu/index.html

His opinion is that the Latin transcription is so fraught with
ambiguities and inconsistencies that it ought to be superceded by
something else (esp. as English is used so widely that for better or
worse it is becoming the de facto international second language). The
letter forms are attractive (apparently drawing on Celtic runes and
Arabic, among others) but it's hard to imagine replacing the current
alphabet with anything else.

I pass this on FYI, since it apparently has not been mentioned on this
list, and not to suggest its incorporation into Unicode ;)

DZO