More info on http://www.techday

2. A new shell for Windows 8
A new programming model for developers

4. New API for Metro-style apps
APIs for storage, networking, and much more
I/O is asynchronous (> 50 ms)

8. Demo

9. Windows 8 is a "touch-first" operating system
Windows.UI.Xaml.UIElement defines events for
processing pointer input (including touch input)
PointerDeviceType identifies pointer type
(touch, stylus, or mouse) except on manipulation
events

10. Event Description
PointerCanceled Fired when the pointer loses contact "abnormally"
PointerCaptureLost Fired when a UI element loses pointer capture
PointerEntered Fired when the pointer enters a UI element
PointerExited Fired when the pointer exits a UI element
PointerMoved Fired when the pointer moves over a UI element
PointerPressed Fired when the pointer is pressed over a UI element
PointerReleased Fired when the pointer is released over a UI element
PointerWheelChanged Fired when the mouse wheel is rolled

12. Event Description
Tapped Fired when a UI element is tapped
DoubleTapped Fired when a UI element is double-tapped
RightTapped Fired when a UI element is right-tapped (mouse only)
Holding Fired when a UI element is tapped and held

14. Event Description
ManipulationStarting Fired when a manipulation is about to start
ManipulationStarted Fired when a manipulation begins
ManipulationDelta Fired when a manipulation continues
ManipulationCompleted Fired when a manipulation ends
Fired when a manipulation ends and the finger was
ManipulationInertiaStarting still moving when it broke contact with the screen

16. Demo

17. Metro apps run one at a time
Apps not in the foreground are suspended
Apps are resumed when (if) user switches back

20. Fired when app is resumed following suspension
Use Resuming events to update state that might
have gotten stale while app was suspended

22. Demo

23. Contracts allow apps to integrate with charms
Three types of contracts
Essential part of Metro UI

24. Allows sharing of data between apps
Source app registers handler for DataRequested
event fired when user taps share charm
Target app selected by user is launched by OS
Think of it as the "Metro clipboard"

28. Demo

29. Every app has a primary tile
App can also create secondary tiles
Each secondary tile has an ID and arguments

30. Tiles can be updated with live content
Tile updates can be queued or non-queued
Tiles can also be updated by push notifications
transmitted by Windows Push Notification Service

32. Every app has a primary tile
App can also create secondary tiles
Each secondary tile has an ID and arguments

36. Demo

37. http://www.wintellect.com/downloads/metro.zip

38. http://aka.ms/mbl-win8
http://aka.ms/mbl-win8/build
http://aka.ms/mbl-win8/devprev
http://aka.ms/mbl-win8/store