Wouter Postma

This plugin adds a simple Javascript to your WordPress website that will check for each image if there is a retina version available. This will make sure that your images (logo’s, buttons, images with text) look sharp on Apple devices with retina displays.
When you have for example a logo of 200 by 200 pixels called “Logo.png”, you will need to upload a second image of 400 by 400 pixels called “Logo@2x.png” in the exact same directory.
<ul>
<li><a href="http://imulus.github.io/retinajs/" rel="nofollow ugc">Retina.js by imulus</a></li>
<li><a href="https://profiles.wordpress.org/wouterpostmanl#content-plugins" rel="nofollow ugc">View my other plugins</a></li>
</ul>

Retina @2x

Gets the @2x image and shows it on retina devices. Works fine!



Works fine

This plugin does exactly what it should do and it's lightweight and simple. 

Simple and Easy

A plugin that looks for retina images automatically based on the @2x naming convention.

ArrayHQ

kyleunzicker

Okay Portfolio Items
If your theme supports portfolio items, the Toolkit adds a Portfolio custom post type. Once enabled, you will see a Portfolio Items menu item, which you can use to create your portfolio.
Okay Custom Image Galleries
If your theme supports custom galleries, the Toolkit adds custom image gallery support. Once enabled, you can create custom, editable and rearrangable image galleries using the new 3.5 Media Manager.
Okay Widgets
The Toolkit adds Twitter, Flickr, Dribbble and Retina social media icons to your theme.

Okay Toolkit

The Okay Toolkit extends the functionality of Okay Themes. It provides a portfolio custom post type, slider gallery support and social media widgets.

Retina @2x vs Okay Toolkit