In the annual Worldwide Developers Conference of Apple inc. Steve Jobs opened up the keynote address, and was joined by SVP WW Product Marketing Phil Schiller and VP, Mac OS X Software, Craig Federighi for some demos.

The company is discussing the future plans around iOS 5, Mac OS X Lion and iCloud. They started with the stats about Mac which is as follows:

Encouraging stats according to Apple

• t has over 54 million Mac users around the world
• PC market has shrunk 1%, while the Mac has grown 28%
• Mac has outgrown the industry every quarter for the last five years
• Mac sales are nearly 3/4 those of notebooks

Mac OS X Lion

The Mac OS X Lion demo began after the brief round of stats . The new major release from Apple has over 250 new features including: multi-touch gestures (multi-touch trackpads are built into all Apple notebooks now), full screen applications, Mission Control (all spaces can be viewed at the top of the screen), Launchpad, Mac App Store built-in, a new version of Mail, Resume, Auto Save, AirDrop, Versions, File Vault, and Mac OS X Lion Server.

The OS update has been anticipated since months and it was being described as bringing some of the best ideas of the iPad to the mac.

“Mission Control is a powerful, entirely new feature that unifies Expose, Dashboard, Spaces, and full screen apps to give you a bird’s eye view of every app and window running on your Mac,” Apple said. “With a simple swipe, your desktop zooms out to display your open windows grouped by app, thumbnails of your full screen apps as well as your Dashboard, and allows you to instantly navigate anywhere with a click.”

“Launchpad makes it easier than ever to find and launch any app,” the company added. “With a single click, Launchpad displays all your Mac apps in a stunning full screen layout where you can launch, re-order or organize apps into folders. You can also arrange apps into multiple pages and swipe between them.”

In the new Mac product, the interface of the new version of Mail is inspired by the iPad, including a conversations feature. It automatically groups related messages into one meline, coupled with a more powerful search feature.