Making your WordPress blog Retina ready
Two handy-dandy plugins for making sure your blog displays high-res images to your readers that are using Retina (or equivalent) displays:
WordPress › Simple WP Retina « WordPress Pluginshttp://wordpress.org/plugins/simple-wp-retina/Seamlessly replaces images with @2x versions on Retina and other high pixel density screens. Change is performed server side saving requests. No action is required on your part other than to activate it and to regenerate your thumbnails with the Regenerate Thumbnails plugin.
WordPress › WP Retina 2x « WordPress Pluginshttp://wordpress.org/plugins/wp-retina-2x/Make your website look beautiful and smooth on Retina (high-DPI) displays such as the MacBook Pro Retina and the iPad.
I am now using Simple WP Retina on my blog and have confirmed that it works properly on high PPI displays.
Video comparison of the two: