Given that I'm using
<link rel="alternate" href="http://m.example.com"> on my desktop site and
<link rel="canonical" href="http://www.example.com"> on mobile, is there any SEO reason for me to replace the mobile site and desktop site with a single responsive site?
If I keep my separate mobile site, is there anything else I should be doing to ensure optimal SEO?
Secondly, what is the most SEO-friendly way of redirecting