There are waves of charlatians that we see in the web industry: a couple of years ago there were SEO consultants, then there were Social Media consultants. I'm starting to see Mobile Web consultants make the rounds now. These people will set up a 'mobile friendly' version of your website at some other domain name like m.yoursite.com. This is the way things were done a couple of years ago for feature phones, not today's smart phones. In fact, Google specifically recommends AGAINST using a separate mobile version of your website. The modern way of doing mobile-friendly websites is just to put a mobile-friendly template on your Joomla site with some module tweeks and you'll be good to go. Please call us first before buying somebody's mobile-version-of-your-website snakeoil.