VMware Fusion public beta, Mac OS X virtualization software that allows users to run Windows, Linux, or Solaris and their applications at the same time as Mac OS X without rebooting, is a free download and is available now.
VMware has annunced that, for a limited time, VMware Fusion is available for pre-order for only $39.99, which is a 50% savings over the suggested retail price of $79.99 when VMware Fusion is released for general availability.
Pre-orders include a final VMware Fusion license key that will be emailed to you immediately and your credit card will be charged.
You may use this license key to immediately run VMware Fusion Beta 4, any release candidate builds, and the final VMware Fusion 1.0 released product.
More info here.