Saw an interesting post on the O'Reilly blog from XML 2007:
Instead of SOA (SOAP, XML Schema, WSDL, UDDI, WS-*) move to ROA: RelaxNG, REST, Atom, AtomPub, and OpenSearch.) [I’ve never heard “Resource oriented architecture”/ROA before.]
Sounds right to me! Of course, you know my famous quote:
If you're not RelaxNG, you're working too hard!
Sounds like the industry is finally catching on! I'll have to look deeper into this ROA approach as well.