Can anyone recommend a 3rd party spell checker to add to a flash movie
application? I need users to be able to have their text spell-checked from a
textarea. I was thinking of using google's spell checking web service but I'm
not sure. I would like to hear if anyone has tried to implement this. thanks

There are so many Free Java Dictionary out there for English speaking people.
Go and search from google.... I did that in Flash remoting MX and Mx 2004 for
my company. You need to know something about Java