Please consider providing an option to lease time to execute tests on cloud-hosted runtimes.  I would love to be able to schedule tests to run against all browser/OS permutations I need to cover for an application.  This should be provided much like a mobile device cloud with a SAAS model that allows for both public cloud and private cloud options.

This would eliminate a huge hurdle for organizations that are simply not allowed the level of access required to execute tests requiring admin-type permissions.  Additionally customers will grasp a better understanding of the value of the runtime licenses if it is something they can easily use without the headache of setting it up and maintaining it.  This coupled with the option to lease load VU's would be very valuable as well.