I have a website that needs a mobile version and for various reasons right now changing over to a responsive design isn't an option. The website is built on WordPress currently. One idea we had was to have parallel sites for devices: http://www.site.com and m.site.com for example.
Is it possible to have two instances of WP like this? For example we install WordPress on the sub domain but have it run from the same database setup. Then to avoid having the possibility of two admin sections editing the same database we would just redirect the entire admin directory from the sub domain to the main domain.
Is this possible? I'm guessing it's not advisable even if it is. What are any other considerations if we plan to move forward with doing this?