I got two email notifications from my post: one about upload.php and the second about style.css.
Trying to get them by following the links, I can only download style.css.
I've placed style.css in the location you specified, purged the Joomla cache and the iPhone cache and now I *can* click the Attach File button, it does allow me to select a photo on my iPhone, but when I Submit the comment, the Chrome browser on iPhone just spins for 1-2 minutes. The resulting comment post under Komento has the comment text, but no uploaded attachment/file.
What else do I need to do?
Thanks!