I just remembered this story. We paid Manuel and Rhonda a visit on Saturday evening, and had a fabulous and extensive dinner. We took the boys along. Marcus had a few goes at saying "Manuel" on the way. As we walked up the street from the car he said "Is this Mount Wellington's house?" (Mount Wellington is the small mountain that dominates Hobart).
Michael's vocab is growing exponentially. He seems to just love saying words and finding new words. He answers questions now with a clearly enunciated, no-nonsense "Yes."