To use 3D search, you simply choose which site to search on the pull-down menu in the toolbar and enter your search term. SpaceTime displays your search results in 3D visual stacks. There is a timeline at the bottom to help you keep track of where you are in SpaceTime.
You need at least Windows 2000, 512 MB memory and 128 MB of video memory (3D capable), Pentium 4 running at 2.4GHz or AMD 2400xp+, 1280 x 1024 screen resolutions, 32-bit true color, with a network speed of 768 Kbits/sec. You may run SpaceTime with less, but it will be slow.
From the forum:
Imagine a 3D common space that can visually display the output of any computer or web page and can run on any computer . . . creating a new extensible computing PARADIGM. No matter where you are, you can always visit where you left off last, remotely. . . Imagine SpaceTime.