Changing between mobile and full site
The mobile site will automatically detect if you are on a mobile device and direct you to the mobile site. It is possible to override this, however.
Moving from Mobile to Full
If you don't like the way the mobile site works, you can easily move to the full site by clicking on the Full Site link in the footer of the mobile version.
Moving from Full to Mobile
If you wish to switch back to mobile, look in the bottom footer on the right. There will be a link to return to the mobile version.