1) The document discusses different approaches for upgrading a photo gallery application to be more "Web 2.0" using either Microsoft ASP.NET AJAX or jQuery. 2) It describes a sample photo gallery application that was upgraded using both the .NET AJAX and jQuery approaches, comparing their advantages and disadvantages. 3) The key point is that the best approach depends on the specific needs and skills of the development team, but the overall user experience should be similar regardless of the technical method and libraries provide easy ways to enhance applications.