Sun's Grid Service is available at network.com, a domain they got with the acquisiton of StorageTek. From the About Sun Grid page:
Sun is changing the very nature of computing by delivering access to enterprise compute power over the Internet with its Sun Grid Compute Utility. Sun Grid provides an easy and affordable access to an enormous computing resource for the predictable and all-inclusive price of $1/CPU-hr.
Reminds me of what my Professor had said last semester in our "Introduction to Grid Computing" class: "As the world uses the Internet to communicate, soon it would use the Grid to compute".