Ryan Rinaldi

Rearchitected from the ground up

• Hardware Architecture
• Capacitive touch – 4 or more contact points
• Sensors
• GPS
• Accelerometers
• Compass
• Light
• Proxmity
• Camera
• Multimedia
• Memory
• GPU
• CPU
• Only 2 resolutions
• Software Architecture
• Built on WinCE
• MS is writing almost all of the device drivers instead of OEM
• App updating, Licensing built in
• New UI model
• Shell frame
• Direct3D
• XBox LIVE, Bing, Location, Push notifications
• Apps all built on CLR (no unmanaged code)
• Silverlight, XNA, HTMl/JavaScript
• Frameworks built for you to access all phone features
• App Model
• What is an app?
• Uniquely identifiable and servicable product packaged as XAP
• Application deployment
• Windows phone marketplace
• Application license
• Crypto-verifable object issued to grant rights to the applications
• Phone only installs .xap pakcages signed by marketplace
• phone handles all aspects of .xap installation based on manifest
• you cannot make arbitrary changes to the phone during install
• Users control install, update and uninstall, while the marketplace controls revocation
• Phone only runs apps that have a valid marketplace license
• Apps are sandboxed into separate security accounts while installed and at runtime
• Resource allocation policy keeps the foreground app responsive
• Resource management policy ensures the user can always use Start to run an app.
• App hosting
• Each app executes inside an isolated, least-privileged host process
• all app code is transparent and CLS-verifiable
• Frameworks enable app code to interact with app model, UI model, phone functionality
• Frameworks
• CLR
• Silverlight
• Device & phone
• Cloud
• UI Model
• Concepts
• Application – UI and logic for functionality exposed through pages
• Page  a single screen of user interaction elements
• Session – An ordered workflow of user interactions spanning applications
• UI metaphor – Web
• Sessions can be paged out when inactive.
• Page State – Contains data that describes an instance of a page, analogous to browser cookie
• Allows the phone to discard all UI info when app is inactive
• Rehydrates page ui based on Page State info
• Graphics composition
• Each page gets it’s own layer on top of the Direct3D  surface
• Cloud Integration Services
• built-in user experiences and APIs
• Familar APIs for interactingwith existing web 2.0 services
• Rich support for incorporating custom web services
• Location Service
• support for consuming GPS, AGPS and Wi-Fi based location
• reverse geo-coding
• Push notification service
• Managed APIs for notification-driven interaction
• When battery is low the service may shut down
• This is not guaranteed message delivery.
• Based on the state of the phone, message could be delayed, batched, or dropped.
• Gamer Services APIs