1. Implement this script:
http://mobiledetect.net/. Add a check in init_startup that checks the current location and then based on that, and the mobile detection, perform the redirection.
2. Mobile style > footer template > remove:
HTML Code:
<vb:if condition="$show['quickchooser']">
<li<vb:if condition="$show['forgetpassword']"> class="last"</vb:if>><a href="{vb:raw vboptions.forumhome}/?styleid={vb:raw vboptions.styleid}" class="fullsitelink" rel="external">{vb:rawphrase full_site}</a></li>
</vb:if>