Buddhism and The Yoga Sutra

I have been interested in Patanjali's Yoga Sutra for years, especially its connections with the Buddha's teachings and the milieu of the shramanas. I teach Yoga Philosophy and have long thought about writing something on the topic. Seems like if you do nothing and wait long enough these days somebody else will do it for you- here is a very interesting essay from Theravadin:

http://theravadin.wordpress.com/2010/08/28/the-yoga-sutra-a-handbook-on-buddhist-meditation/