'One of the keys to unlocking the full return on investment in SOA is the ability to build service-oriented UIs,' contends the co-founder & CEO of Appcelerator, Jeff Haynie. These SOUIs, as he calls them, are clients designed to consume services, regardless of language or platform. Haynie believes Appcelerator's approach truly zeros in on the need for a clean separation the application from services in an agile development model.