I want to switch to other theme at this url - www.mysite.com/m/ . And then redirect mobile users to www.mysite.com/m/ with htaccess based on their "user-agent". I have htaccess redirect rules and it is work for me. But how to switch to mobile theme based on the url? Virtual theme plugin (http://wordpress.org/extend/plugins/virtual-theme/) is great solution for me, but unfortunately it doesn`t work for mobile browsers.