OS X Lion: Changing the way you use your Mac
If you are still looking for the next niche, that would be multi-touch and surface computing. Check out Windows 8 for multi-touch support.
Apple recently announced the new features in its OS X Lion.
Multi-Touch gestures transform the way you interact with your Mac, making all you do more intuitive and direct. Now an even richer Multi-Touch experience comes to OS X Lion. Enjoy more fluid and realistic gesture responses, including rubber-band scrolling, page and image zoom, and full-screen swiping. Learn more about gestures and animations
One thing I hate about Mac is applications not having full screen by default. Guess what? New version of OS X Lion now will support full screen apps.
http://www.apple.com/macosx/whats-new/full-screen.html
There are many other features include
Find more features and read more details here:
http://www.apple.com/macosx/whats-new/