That means it supports Windows 7 Jump Lists (for quick access to your music controls and playlists from the Taskbar), Previews letting you glimpse and control media by hovering your mouse over the Zune button on the Taskbar, and Aero Snap auto-resizing of the Zune software window.
The Xerox system required you to select a command in order to do anything, ranging from resizing a window to changing the extension that located a file.
Even ordinary users will flock to a mouse that snaps onto an Internet hyperlink and lets them feel a window stretch (the sensation you get when resizing a window on your desktop).