Windows 8 - New features and better User interface

According to the information revealed by Microsoft, there will be many new features and enhanced UI on windows 8. Users will find it very easy to access the features in new Windows OS. Here is a list of some of the major new features and UI enhancements that will be served in new Windows OS. It is still unclear that how many Editions will come out like Home Edition, Ultimate, Professional etc on current W7.

New Features ( source: http://www.engadget.com )

- All Windows 7 applications will run natively on Windows 8
- Security update notifications have been minimized to the lower right of the log-in screen
- Refreshed Windows Task Manager suspends apps when they're not running on-screen
- New "Reset and Refresh PC" functions enable simplified system wipe and restore
- HyperV virtualization software comes pre-loaded on Windows 8
- Multi-monitor support now enables a single background across screens, as well as monitor-specific task bars
- Multi-touch support enabled for Internet Explorer 10
- Magnifier function enhanced for desktop manipulation
- Optional thumb-by-thumb input mode
- SkyDrive storage support integrated into all cloud-based apps
- Metro-style refresh for Mail, Photos, Calendar and People apps with Windows Live ID
- Settings roam allows for preferences to sync across a user's Windows 8 devices
- Continued update support for Windows 8 Developer Preview Beta
- Even a Lenovo S10 (first-gen Atom + 1GB of RAM) can "run" Windows 8
- There's "no overlays" with Windows 8; Metro-style goodness is baked into the core
- Both Metro-style and conventional Win32 apps will be sold in the Windows Store
- Windows 8 devices equipped with an NFC chip will be able to use a tap-to-share feature to either send content from one device to another, or simply receive content from something like an NFC-equipped card.
- Logins will use a photo-based system
- Apps will be able to natively connect and understand one another (if written as such)
- Built-in antivirus software will ship in Windows 8
- There will not be a different edition of Windows 8 for tablets, and presumably, not for Media Centers either
It's unclear how many "editions" (Home, Professional, Ultimate, etc.) of Windows 8 there will be
- ARM devices will be supported, but not in the developer preview

New Desktop UI - Tiles

Lockscreen 

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