I am testing an ipad touch. If I purchase a Verisign cert and replace the existing mobility cert will that negate the user having to login to https://datasync:8120/ and download the cert or will they still need to get the cert either way? If they will not need to login to get the purchased cert do I only need to open port 443 through our firewall? Is there any caveats I should be aware of?

Thanks in advance.