I have checked the terms of their license and as long as I do not exceed 10,000 copies, I do not need to license each CPU. Such a scheme would be almost unworkable anyway! "...grants to you right to distribute the licensed component(s) up to a maximum of 10,000 of each component, only as part of software which you have developed, and on condition that the distributed package is not substantially similar to the SOFTWARE PRODUCT. You agree that our support personnel will not be required to make any efforts to solve any problem issues with the components of the SOFTWARE PRODUCT which you have distributed."
The Rob Blog
Google Talk: robert.caldecott