Dare: I'll buy that the infoset provides a much better data interop story than... well, there isn't anything else really. I am a big believe in XML (infoset) as a way to exchange data between entities (software nodes, companies, etc.). I still believe that data is only one portion of an application. My apps consist of data, presentation, interactivity, services, etc. Data is an important part of the functionality, but it is only one of the parts. T-SQL still isn't my language of choice, nor will XSLT be.
(oh, and I updated the entry to fix the spelling... another reason Radio sucks - no spell or grammar checker)