Licensing Matters

If you aren't already confused by the Cloud Computing rhetoric, try figuring out the software licensing conundrum.  Most software licenses were written around client/server frameworks and scale upwards based on the number and speed of server CPUs and/or the number of users.  But with cloud computing, users may surge up to the cloud.  Does that mean that their cloud provider has to inform their customers as to what the performance characteristics were or that the customer must tell their cloud providers which processors to use in order to be consistent with software licensing?  That doesn't sound easy and seems inconsistent with the long term goals of cloud computing.   So how is this going to work anyway?  Surely the software guys want their slice of the pie.