"Unfortunately, we're not cool enough to run on your OS yet. We really wish we had a version of Photosynth that worked cross platform, but for now it only runs on Windows. Trust us, as soon as we have a Mac version ready, it will be up and available on our site," reads the website.
Photosynth is a technology Microsoft has designed to create 3-D "worlds" with your photos. This technology is definitely cool, and we actually would like to see it come to the Mac, but the way they worded the install page just makes us laugh. Meanwhile, VMware Fusion's Pete Kazanjy told us that the warning about Photosynth not working in a virtual machine isn't quite right; he got it running just fine in Fusion 2 Beta 2, and has the video to prove it.
Thanks for the tip, Nate!