Microsoft at its MIX10 developer event detailed some of how app development and sales will work for Windows Phone 7. Confirming that it's based on Silverlight and XNA, the mobile OS will fence off third-party apps from true native code but will give them access to all the key features: it will recognize accelerometers, cameras and multi-touch gestures. WP7 will also mirror iPhone development by using background push notification for those not allowed to multitask and include a general location service that any app can use.
