Chris, I didn't try this, but I guess you need to go to /admin/pages/manage > Edit "Mobile Version" > Uncheck "Guest/Registered Members" and then hide "Mobile Version".
Hi,
Tried that, built in mobile still displays.
If you enter the site base URL http://nellbrydenfans.com the 1.6 built in mobile displays.
If you enter the URL of the original plugin http://nellbrydenfans.com/mobile the original app displays. The original plugin used to auto detect a mobile device accessing the base URL and redirect you, this no longer works.
What about adding a URL redirect?