renp

Currently, when user navigates to WooCommerce > Orders and clicks on Order Notes icon, it opens the order itself. 
WooCommerce Order Notes Window plugin overrides this behaviour by opening modal window with 
the content of the Order Notes meta box.
Additionally, information about order note author is stored and displayed.
WooCommerce 2.0.x is required. The plugin is not compatible with WooCommerce 2.1 or newer.

WooCommerce Order Notes Window

Overrides the default functionality when clicking on Order notes button so that modal window with order notes is displayed instantly.

shift8

This plugin allows you to integrate the <a href="http://joaopereirawd.github.io/animatedModal.js/" title="animatedModal.js" rel="nofollow ugc">animatedModal.js</a> and <a href="http://daneden.github.io/animate.css/" title="Animate.css" rel="nofollow ugc">Animated.css</a> library into your wordpress installation. The plugin wraps the library into an easy to use shortcode that generates the markup needed to implement the flyout full screen modals.
Using this plugin you should be able to create 100% custom animatedModal flyouts and overlays. The shortcode pulls a page ID as a source of content. You can format and style your content via WordPress’ built-in WYSIWYG editor. Further to that you can style everything with the custom CSS classes that are generated by the shortcode.

Shift8 Modal

Plugin that allows you to integrate AnimatedModal library in order to create full screen modal flyout windows.

WooCommerce Order Notes Window vs Shift8 Modal