Getting WPTouch and W3 Total Cache to Work Together [closed]

See: http://wordpress.org/support/topic/wptouch-w3-total-cache-must-disable-browser-caching

You’ll need to add that long list to Rejected User Agents under Page Cache, Minify and CDN.

If your concerned about the browser caching issues when switching between mobile vs. normal themes, you’ll need to add some query string pattern in the reject URIs field on the page cache settings tab.