BUILD conference keynote.  13 Sep 2011, 11:30AM CST.

• Today

• Windows 8 platform for Metro apps

• Windows kernel – brought forward – robust, scalable
• Windows Runtime – Win RT – APIs
• WinRT – over 1800 objects
• Application Model – natively built into Windows; all native code
• Is .NET Framework gone?  Where does it live in this picture?
• You pick the language that you want to use
• Antoine Leblond – building apps

• New Project, pick language

• Templates are fully-functioning metro-style apps

• Adding some HTML5 elements

• Writing some code (Javascript)

• Run the app – browser launches

• Ugh, back to procedural code.  Step backwards, if you talk to a XAML developer

• Sharing to social network

• Blend 5 has support for HTML5

• Using new CSS layout Grid

• Previewing app at different resolutions and screen orientations

• 58 lines of code for basic little HTML5 app

• Packaging app into app store

• Set price for your app

• Built-in licensing model, including trialware option
• App certification process.  Shows you where your app is in the process

• Technical Compliance – developers can run tests in advance using MS-supplied tools
• App Store, Spotlight section

• Games in App Store

• App Store is itself a metro-style HTML5 app
• Steven is excited

• App listing page in App Store

• What about Win32 apps?
• Start screen can list Win32 apps as well (e.g. Quicken)

• Developers are NOT forced to use new Microsoft licensing model
• Old apps can just be listed in App Store
• XAML – where does it fit in?
• Silverlight apps can run in new browser in Windows 8
• Works the same way as in Windows 7, but not Metro app
• Converting Silverlight app into Metro-style app
• Converting from Silverlight environment to Windows 8 – only requires a handful of changes (e.g. namespaces)
• Ported Silverlight now allows touch, full Metro app.  But it’s still XAML.

• Change view in XAML to Windows 8 GridView.  Still XAML.
• And can connect to Search Charm in Windows 8
• We now can run Silverlight app with new Windows 8 grid view

• New APIs/tools to build Metro apps
• Rapid/scalable development
• Your choice of languages and development tools
• Apps automatically run on all the hardware that Windows 8 supports