[orca-list] orca should indicate spell checking errors by the same way like NVDA announces them

["Mgr. Janusz Chmiel" <janusz chmiel volny cz>]

Dear advanced users and developers,
NVDA screen reader announces misspelled words in Seamonkey HTML editor 
or inside new message editable fields as follows.
Even when user type multiple words which are separated only by using comma
such as
monkey,dog,silver,
NVDA automatically announce spelling error when comma have been typed. 
Why Orca can not work by this way to?
I think, that it would be perfect feature. And NVDA also automatically 
say that word is misspelled when user press up or down arrow keys. Not 
only when user press CTRL+left arrow or CTRL+right arrow keys.
How complex would be to implement it in Python?
Mr Vagner and others. What do you think about this suggestion?
Or this technique can be only done in Windows, because NVDA calls some 
fast C++ code for this purpose?