Changes

AppDeveloper ;AppService : An Internet- A developer accessible server that creates applications which may or may not have an application talks to. For example, Facebook's locally installed application talks to Facebook's API server to get data. The Facebook API server-backed resourcesin that case is the AppService as it acts as a service to the application.

AppService - An Internet-accessible server ;Application : A website application that an application talks to. For example, Facebook's might run locally installed application talks on a device with or without needing to Facebook's API server talk to get an AppService. ;FxAID : A Firefox Accounts user ID. ;Device Presence Channel : A channel of communications between a phone/browser device and Mozilla Presence that carries live notifications from Presence and presence datato Presence. The Facebook API server in  ;AppService Presence Channel : A channel of communication between Mozilla Presence and an AppService that case is carries presence updates for users sharing their presence with the AppService and live notifications from the AppService as it acts as to be delivered to a PUID. ;PUID : A Presence Unique Identifier. Every AppService authorized by a service user to see presence updates will be assigned a PUID that it should store and associate with the user (who may or may not be logged into the application).