Newbie Question about Proxys and User Authentication

I am finally starting to get my application off the ground. I am still trying to wrap my heard around all this since I am new to puremvc and flex.

I am authenticating a user using a remoteobject.

All that works, I am able to authenticate and change my viewstack if the authentication is successful.

On my view that is displayed after the user logs in I want to display a simple "Welcome, <username>"

How do I access my user object from an arbitrary view?

Here is my code for the loginProxy:

public class LoginProxy extends Proxy implements IProxy
	{
		public static const NAME:String = "LoginProxy";
		
		private var loginService:RemoteObject;
		
		public function LoginProxy( data:Object = null ){
			super(NAME, data);
			
		}
		
		public function userLogin(username:String,password:String):void {
			loginService = new RemoteObject();
			loginService.source = "org.enohp.app.Userdao";
			loginService.destination = "userService";			
			loginService.addEventListener( FaultEvent.FAULT, onFault );
			loginService.getUserFromLogin.addEventListener( ResultEvent.RESULT, onResult );
			loginService.getUserFromLogin.send(username,password);
		}
		
		private function onResult( event:ResultEvent ):void {
			if (!event.result) {
				Alert.show("You have entered an invalid username/password", "Login Error");
			} else {
				setData(event.result as User);
				Alert.show("You have successfully logged in.", "Login Success");
				sendNotification( ApplicationFacade.VIEW_FBAPP );
			}
		}
		
		private function onFault(fault:FaultEvent):void {
			Alert.show(fault.fault.faultString + "\n" + fault.fault.faultDetail, fault.fault.faultCode.toString());
		}
		
		public function get user():User
		{
			return data as User;
		}		
	}

The loginProxy is called from a notification that is handled by my loginMediator:

private function onMouseClick(e:Event):void {
			loginProxy.userLogin(theView.username.text,theView.password.text);
			Alert.show(ObjectUtil.toString(loginProxy.getData()), "Login User from Login Mediator");
		}

I thought that my alert in the mediator should show the user that was authenticated but it returns null.

Any help is appreciated.

TIA,
Shinan