I currently have a theme installed that generates both a desktop theme and a mobile theme. The problem is, I prefer how the desktop view formats on a tablet compared to mobile but most tablets default to the mobile version. I am currently 'forcing' desktop view on mobile devices (deleted code from header.php) but I wonder if there is a plug-in that displays a dialog box when viewing the site from a mobile device? I'd like it to ask whether the viewer would prefer the "full site" or "mobile version". Most people usually prefer to view full sites on a tablet and mobile on a phone only so I'd like them to be given an option.