There is a way we can access the mobile Web Terminal through a regular browser - we just need to manually change one part of the URL when the login page loads. 

The URL we'll see after clicking the "Login as..." button as an administrator (and the URL volunteers will login from) will begin like this: https://secure.rotundasoftware.com/l/web-terminal/login/...

If we change the "/l/" (it's right after ".com") to "/o/" (a lowercase letter O) and reload the page, we will see the mobile Web Terminal.