How to create iOS's recipient bubbles in MonoTouch

RecipientBubble.cs

using System;
using System.Drawing;
using MonoTouch.Foundation;
using MonoTouch.UIKit;
using System.IO;

namespace BubbleExample
{
	public class RecipientBubble : UIView
	{
		public const string IMAGES_PATH = "Content/Images";
		private static UIImage _backgroundImage;
		
		private UILabel _titleLabel;
		private UIImageView _backgroundView;
		
		static RecipientBubble()
		{
			_backgroundImage = UIImage.FromFile("recipientbackground.png").StretchableImage(11, 0);
		}
		
		public RecipientBubble(string title)
		{
			_titleLabel = new UILabel(new RectangleF(0, -100, 10, 23));
			_titleLabel.Font = UIFont.SystemFontOfSize(14);
			_titleLabel.TextAlignment = UITextAlignment.Center;
			_titleLabel.Text = title;
			_titleLabel.SizeToFit();
			_titleLabel.Frame = new RectangleF(0, 0, _titleLabel.Frame.Width + 20, 21);
			_titleLabel.TextColor = UIColor.White;
			_titleLabel.BackgroundColor = UIColor.Clear;
			AddSubview(_titleLabel);
			
			_backgroundView = new UIImageView(_backgroundImage);
			_backgroundView.Frame = new RectangleF(0, 0, _titleLabel.Frame.Width, 23);
			InsertSubviewBelow(_backgroundView, _titleLabel);

			SizeToFit();
		}

		public SizeF ComputedSize
		{
			get 
			{
				return _titleLabel.Frame.Size;
			}
		}
	}
}

ViewController.cs

using System;
using System.Drawing;
using MonoTouch.Foundation;
using MonoTouch.UIKit;

namespace BubbleExample
{
	public class ViewController : UIViewController
	{
		public ViewController()
		{
		}
		
		public override void LoadView()
		{
			base.LoadView();

			var recipientBubble = new RecipientBubble("Capt. Morgan");
			recipientBubble.Frame = new RectangleF(new PointF(10, 10), recipientBubble.ComputedSize);
			View.AddSubview(recipientBubble);
		}
	}
}