Beta 1: Cloud File Sync (File storage to web)
Beta 1: Streaming Manager (Run programs before finishing download)
M3: Metro UI Task Manager (Non-Touch) + Modern Task Manager (Touch)
M3: Hybrid Boot (Hibernates in low-power state when shutting down)
M3: Windows 8 TOGO USB (Allows you to run Windows off USB Flash, 16GB require)
Beta 1: Windows Phone 7 like IE10 Beta browser & PDF View
M3: Metro UI/Windows 7 Phone like log-in screen w/ Date/Time & return of Alt+Ctrl+Del from Windows 2000
M1: Ribbon UI File Explorer (Like Office 2007/2010)
M3: Factory Restore Default Option (Re-Installs Windows)
M1: Additional Disk Cleanup options (Searching for specific files to cleanup or large files)
M2: Windows App Store (Like in Mac OS X) M2: Genuine Center (Additional Security to eliminate pirating)
Beta 1: Direct X 12
M1: Smartscreen Filter (Virus-Like scanning for IE10)
M3: Aero 2.0 Auto-Colorization
M3: 3D hardware acceleration w/ software rendering enabled
Beta 1: Windows Live integration (appears next to clock w/ 3rd party service offered)
M3: Aero enabling using software on low-end computers
M3: History Vault (Keeps track of your steps to retrieve files)
Beta 1: Touch Enabled IE10
M3/Beta 1: Aero Light UI introduced
M1: Windows Language Explorer
M3: Cryptic desktop auto-deciding wallpaper
M3: Desktop now as service to enable virtualization easy & enable to start certain components
M2: Built-in screenshot feature on right click
M1: Webcam Capture Program
M3: Push Notifications
RC: Support USB 3.0 SuperSpeed
M1: Mobile Broadband Experience Account Sync & File Server Resource Manager
M3: Additional My Settings & My Look added to User Account on Taskbar codename WinFuture
RC: Facial Recognization for log-in from Webcam (Enabled from Control Panel)
M2: Desktop Wallpaper check box for using on Login/Lock Screen
M3: Mounting of ISO & VHD support
Beta 1: AppX computer support (XAP support from Windows Phone 7/Silverlight based)
M3: Web Sharing
RC: Branch Cache
RC: BioMetrics
Beta 1: Problem steps recorder
Beta 1: DirectAccess
RC: Federated Search
RC: Smart Card Support
RC: Updated Powershell 3.0
RC: Homegroups update
RC: Kinect integration
Info may change at any time.
Windows 8 M1 Build 7850 leaked on Apr. 12, 2011 it is a build from September 2010 and does not have many changes. Microsoft is inserting timebombs into these builds. So far the only problem I see is Sound is not working in Google Chrome.
There are between 100 to 200 NEW features missing from this list.
Also Windows 8 or 365 will be come pre-loaded with IE10 as you should know IE10 Platform Preview 1 is now available.
I won't post screenshots of M1 because theres not much change. However once M3 is here I will post those.
Builds list is here:
http://www.windows7newsinfo.com/smf/index.php?topic=14377.0;wap2