rainborick - 6:03 pm on Aug 10, 2012 (gmt 0)
My understanding is that you need to serve dedicated content to mobile users - specifically feature phone users - to be included in the mobile index. Smartphones (iPhone/Android/etc.) and tablets get served from the main index because they can accommodate conventional webpages. Responsive design simply means that those users will have a better experience.
To get a mobile website included in the mobile index you'll either need to link to it from your primary site, and/or redirect users appropriately - which is the issue I'm dealing with right now. I really prefer smartphones and tablets on the primary site and just redirect feature phones to the mobile site, but I'm not sure how best to do it without having a list of RewriteRules a mile long.