Can’t see that there will be much difference in the two.
Next major Parallels Desktop version expected by H1 2008
Some of the features of Parallels Server, such as full 64-bit support for host and guest operating systems, and support for multiprocessor VMs, should also appear in the next major version of the desktop edition, due in the first half of next year, said Rudolph.Supporting 64-bit operating systems “is not really necessary on the desktop, but on the server it is,” said Rudolph. The feature will take away one of the advantages of Fusion, a rival desktop product from VMware, which already has the capability. Both products continue to evolve and add features: Parallels offered a downloadable feature update for its version 3 desktop software earlier this month, and VMware began beta testing version 1.1 of Fusion on Tuesday.