Plugin that hide all title attribute-tags from images in posts.
All the plugin do is adding a hook to 'the_content' and to 'post_thumbnail_html' and removes all title-tags before they are sent to the browser. The plugin will only work for what is contained in 'the_content' and the 'post_thumbnail_html', i.e. it will not remove title attribute-tags from other parts of the site.
This plugin is free for everyone! Since it's released under the GPL, you can use it free of charge on your personal or commercial blog. :)