Dr. Kay Toomey, who developed this approach has some upcoming conferences. Go to www.educationresourcesinc.com and look under conferences or search under SOS. She will be in Iowa in November, Kentucky in Jan and New Jersey in April.
I did part of my graduate thesis on this approach and it was almost impossible to find info. She has no books, etc. published that I could find. She is a consultant for Gerber so has some nice info in this pamphlet: www.gerber.com/content/usa/html/pages/peduatricbasics/pdffiles/PedBasics_100.pdf (if it doesn't work, take the underline mark out before the 100)
She also has info in this article (the developmental food continuum, steps to eating and oral motor & sensory play ideas) http://new.infantrefluxdisease.com/feeding-tips-for-oral-aversions.php
Hope this helps! Post any new info if you find some!
Thank you for sharing!