Mac is a beautiful Operating System when compared to linux and windows 7. The latest vesion of Mac OSX is Lion, which has the best features of apple packed up. Here is a preview of the macbook air.
New features include Mac App Store, a new way to discover, install and automatically update desktop apps; Launchpad, a new home for all of your Mac apps; system-wide support for full screen apps; and Mission Control, which unifies Exposé, Dashboard, Spaces and full screen apps into an innovative new view of everything running on your Mac, and allows you to instantly navigate anywhere.
The Mac App Store brings the App Store experience to OS X, making discovering, installing and updating Mac apps easier than ever. Like on iPad, you purchase apps using your iTunes account and they download and install in just one step. App updates are delivered directly through the Mac App Store, so it’s easy to keep all of your apps up to date. The Mac App Store will be available for Snow Leopard within 90 days and will be included in Lion when it ships next summer.
Lion includes system-wide support for full screen applications. With Lion, you can enter full screen mode with just one click, switch from one full screen app to another with just a swipe of the trackpad, and swipe back to the desktop to access your multi-window applications.
Here is the preview video of the Lion
Well, this kind of appearence is now possible for windows 7 with a skin pack available at www.door2windows.com
Here is what it looks like after you have got it installed.
Here you can get the skin pack :