I just got a MBP Retina 13 today, and was planning on testing it tomorrow with the IQ. Good to know it works. Take a look at this test from DT, they recommend turning the charging via FW off for increased stability.
http://www.digitaltransitions.com/blog/dt-blog/thunderbolt-adapter-testingWill you be using CS6 with that 13" 8GB Ram machine? Just wondered if it will be enough power for MF images.