public HostedProductsViewController ()
		{
			// two products for sale on this page
			products = new List<string>() {hostedImagesProductId, hostedFilesystemProductId};
			iap = new InAppPurchaseManager();
			theObserver = new CustomPaymentObserver(iap);

			// Call this once upon startup of in-app-purchase activities
			// This also kicks off the TransactionObserver which handles the various communications
			SKPaymentQueue.DefaultQueue.AddTransactionObserver(theObserver);
		}
 public InAppPurchaseManager()
 {
     theObserver = new CustomPaymentObserver(this);
     SKPaymentQueue.DefaultQueue.AddTransactionObserver(theObserver);
 }