I using SiteMapPath with an xml file for data. I would like to use the same file for another menu, but I need to have more information attached to each node.
<siteMapNode target="_blank" url="~/Default.aspx" title="Home" description="Home Page" >
VS
<siteMapNode url="~/Default.aspx" title="Home" description="Home Page" >
So far it doesn't break on my box, but will I run into problems later? Or is there a better way?
Doubtfull you'll run into any problems. Whatever is consuming your sitemap file is only going to parse known attributes. Extra attributes will go ignored.