This book has taken you through many of the curves, obstacles, and straightaways of the XML highway. We have covered the language, how it should be used, and how to build successful enterprise-level applications. You should now have a good understanding of XML Web services and the .NET Framework. We've covered a lot of material.
Here is where the book ends and you go down your own path. Carefully consider the lessons learned within these pages, and be sure to make solid and sound decisions about how and why you are using XML. From the three of us, good luck!