http://unsuck-it.com/ is the best thing on the Internet in a year. What it needs is an API. Will it ever happen? Only if they can make money from it.
If they had an API:
Greasemonkey plugin or email software that identifies string tokens and unsucks them. Just send the whole message to Unsuck It and it returns the less sucky version
Augmented reality that listens in on what people say and interrupts them, unsucks their phrasing, then lets them continue