You have the following code being output in your site's footer...
<p><a onclick='document.cookie="wpmp_switcher=mobile;path=/;expires=Tue, 01-01-2030 00:00:00 GMT";' href='http://azinthesaddle.com/?wpmp_switcher=mobile'>Switch to our mobile site</a></p><script type='text/javascript'>
That indicates that you have either a mobile redirect plugin or script set up on the site.
EDIT: That code is from the WordPress Mobile Pack plugin: http://wordpress.org/plugins/wordpress-mobile-pack/