There is a link in the footer of the full site right below "Community & Forums" called "Mobile". Clicking this will allow you to access the mobile site from the full site.
No, there isn't. Let me elaborate a bit. I don't log in on my phone because I only look while on my phone. If it's there while logged in it is not if you are not logged in. If it's not there while not logged in then non-members can't use it. Non-members will have no way of using the mobile version if they view the full site once. You won't attract many new members if that one simple thing can't be done. Also, I thought changes were to make things more user friendly. Sites already load slow on a phone, and now instead of going directly to page three of a thread I have to load page one then three, taking twice as long to view what I want. That surely will turn people away too.