Gets the latest tweet, and draws it on a live tile

ScheduledAgent.cs

GetLatestTweet("Windcape") 
    .ContinueWith(task =>  
    {
        var tcs = new TaskCompletionSource<bool>(
            TaskCreationOptions.AttachedToParent);

        if (task.IsCompleted)
        {
            if (task.Result.Count > 0)
            {
                // The TaskCompletionSource is being set to complete
                // once all rendering is complete.
                Deployment.Current.Dispatcher.BeginInvoke(
                    () => GenerateTile(task.Result[0], tcs));
            }
        }

        return tcs.Task;
    })
    .ContinueWith(task => 
    {
        NotifyComplete();
    });