As mentioned, I use my Newton for environment, safety and industrial hygiene audits and surveys. The product SAME - StandAlone Menu Editor from Standalone is a perfect product, as it allows me to speed data entry.
this is what each icon on the new caret menu does (from upper left, reading left-to-right)
carriage return
delete
period
comma
colon
semicolon
real single open quote
real single closed quote
real double open quote
real double closed quote
left parenthesis
right parenthesis
slash
hyphen
carriage return and bullet
asterisk
space
sleep
toggle backlight
paste date
paste time
select all text
forward delete
enter text "yes"
enter text "no"
enter text "n/a"
enter text "okay"
enter text "partial"
enter text "possible"
enter text "plan"
enter text "I will send"
enter text "you will check"
enter text "I will check"
enter text "I will send"
enter text "http://"
enter text "www."
enter text "@"
enter text ".com"