The "Fusion" codename is used to describe the project that is, basically, putting VMware Workstation type capabilities onto the Mac OS X operating system. From their web site:
The new VMware desktop product for the Mac, codenamed Fusion, allows Intel-based Macs to run x86 operating systems, such as Windows, Linux, NetWare and Solaris, in virtual machines at the same time as Mac OS X. It is built on VMware's rock-solid and advanced desktop virtualization platform that is used by over four million users today.
With Fusion, you can run traditional PC applications on your Mac: if you need to run PC applications, you can now do so by leveraging the power of virtual machine technology.
Here's the message I received with the announcement:
We are excited to announce that the Fusion beta program is now live. Fusion is the codename for a new VMware desktop product for Mac that will enable Intel-based Macs to run x86 operating systems, such as Windows and Linux, in virtual machines at the same time as Mac OS X. It is built on VMware's robust and advanced desktop virtualization platform that is used by over four million users today.
You can find detailed information about this new VMware product, answers to frequently asked questions, links to download the product, release notes, etc. at: www.vmware.com/fusionbeta.
We ask that you give us candid feedback on the software and documentation. If you encounter problems while testing this release, please submit a bug report by clicking on Service Request located in the Quick Links section at: www.vmware.com/fusionbeta.
We also have a discussion forum where you can interact with the product team and other beta users to discuss product features, post questions, exchange tips and tricks. You can access the forum by clicking on http://www.vmware.com/community/forum.jspa?forumID=371.
With Fusion you can now run any of the over 360 virtual appliances available at the Virtual Appliance Marketplace (http://vam.vmware.com) on your Mac. Virtual appliances are pre-built and pre-configured applications bundled with an operating system so they can run on any hardware or operating system.
The VMware Fusion Team
Tags: VMware, Fusion, Mac, Beta, Mac OS X, Virtualization, Brian Berliner, brianberliner