After much feedback and discussion with our developer community, it has been decided that the next sample store design will be responsive only and will not include separate mobile-only pages.
However, the cart will still support installs having two versions of pages (one for desktop and one for mobile devices)(i.e. about.php and about_mobile.php)
Instead of having that feature turned on by default, it will just be turned off by default and any install that wants to still have separate pages for mobile and non-mobile devices can still use the feature by enabling it via the admin.
Our new website at http://www.sitestorepro.com is based on the new sample store responsive design.
This change will not affect any live installations since upgrades to live stores are not design-related.
As with all versions of the Site Store Pro, you are not limited by using the sample store design and can apply the cart files to any site design/layout you choose.