Welcome to WebmasterWorld Guest from 18.104.22.168
Forum Moderators: open
To be honest I don't see how your developer saw it made sense to have the page loaded and then a further AJAX/JS request having to be made. It kind of defeats the advantages of AJAX and obviously the content not being immediately visible is a drawback.
My guess is google, knowing a searcher is using a smart phone, will favour a website if it is available in smart phone format, even if a full screen version with identical content exists elsewhere