Caching plugins and services tend to overwrite your desktop theme with posts and pages stored using your mobile theme (and vice-versa). Until caching software can recognize the theme being used, we offer support to assist you in disabling them from activating when mobile devices are detected. This will allow you to see your mobile theme on mobile devices and your desktop theme on desktop browsers as expected.
As caching has little to do with WPtouch, beyond providing guidelines for setup, we are unable to provide additional support for third-party products and services. If one caching plugin or service isn't working well with your WordPress configuration, we recommend contacting the developer and/or trying another.