The document summarizes Dante's nine circles of hell from his Divine Comedy and relates them to different aspects of developing XPages applications. It discusses how the first circle of Limbo relates to hybrid XPage/Domino applications, how the second circle of Lust relates to focusing on user interface and experience, and how the third circle of Gluttony relates to managing server resources and page loading. It provides examples and demonstrations for each circle. The document concludes by listing additional sessions at the conference related to XPages development, Java, and IBM collaboration tools.