Launchpad - Management (folders, desktops) and run your application in the style of iOS
Full-screen applications
Mission Control - unites in a Dashboard and Expose, and becomes the center of the window management applications, desktops and so on.
Gestures & animations - new multitouch gestures
Auto-Save maintaining operational status, even after logging out
Versions - Time Machine for documents - manage document versions in two mouse clicks
Resume - saves the state of your Mac after a reboot, including all applications, websites and documents
Mail 5 - new e-mail client in the style iPad
Lion Server - server version is now built into Mac OS X Lion
Extras. Information: The image of the Retail Distribution. Pristine, added only kexts for Wi-Fi & Audio & Battery, and at the root of the image with the DSDT Extra
P.S. To install the required external USB keyboard and mouse. During the OS installation, choose the language