People have been doing the same things on computers for years. Clicking. Scrolling. Installing. Saving. With OS X Lion, Apple has challenged the accepted way of doing things by introducing new features that change the way you use a computer.
Mac OS X Lion brings Multi-Touch Gestures (that transform the way you interact with your Mac making all you do more intuitive and direct), Full-Screen Apps (systemwide multiple full-screen apps open at once), Mission Control (bird’s-eye view of everything opened and running on system), Launchpad (all the apps on MAC), Resume (restart your Mac and return to what you were doing), auto save feature, versions of your work, airdrop, new mail, and more.
Windows 8 provides lots of new features along with a newly designed interface. It looks very similar to Windows Vista and Windows 7 (Great combination) but there are many GUI changes like redesigned taskbar, Explorer, new boot screen and login screen, etc. Windows 8 is yet in development phase but we have got its skin to use at Windows Vista or Windows 7 to make OS look like Windows 8.
RIM (Research In Motion) has released BlackBerry Tablet OS SDK Beta and Simulator for developers to build and test apps for BlackBerry PlayBook tablet. BlackBerry Tablet OS SDK allows developers to create Adobe AIR applications. It will also include support for Flash and HTML5 in coming releases.