Definition - What does Semantic Zoom mean?
Windows 8 is expected to be launched in January 2012. The developer version of Windows 8 is available on Microsoft’s website for download.
Techopedia explains Semantic Zoom
The semantic zoom feature can be visualized with Google Maps, in which a user zooms into a particular location. However, the difference in Windows 8 is that the user can view a full display or shrink the elements to fit into the available screen size with two fingers.