New Post: http://www.mysite.com/en-US/sitemap.xml is showing pages where "Menu item" is empty.

Thanks burningice, I copied and customized SiteMapHandler.cs and Verify.cs to App_Code, registered a custom handler for sitemap.xml in Web.Config

Added
if (String.IsNullOrWhiteSpace(child.Title)) continue;
before
WriteElement(child);