This is such a trivial patch that I'm almost embarrassed to post it. But, hey, perhaps it'll save someone five minutes. OK, so you're using SafariWatir to test your app and you need to put text in a text area. So you try:
and you get:
safariwatir-0.3.3/safariwatir.rb and add this at line 399:
and this at line 472:
Or just grab safariwatir.rb from here. Now, run your test again, and huzzah! The text area gets filled in one character at a time, just like a text field.