So my prediction was wrong, he didn't go directly to full sentences, but there are some 50 cent words in the growing vocabulary. Here's a sampling of choice words and phrases from the Nugget. Keep in mind that there is still a heavy toddler accent, so translation is necessary for non-parental units.
-Zimbabwe: singing along with The Alphabet of Nations
-Oh, I see: reading along with The Little Mouse, the Red Ripe Strawberry, and the Big Hungry Bear
-Mama music: a daily request to turn on the cd player
-Hi Doggie: said repeatedly after any separation, like entering the house after an errand or coming downstairs after his nap
-Opposites: the title of a Sandra Boynton book, one that he doesn't care for, so I'm surprised this is among the first discernable words.
His mystery word du jour is "ah-bizz-ya". He says it over and over again, clearly and urgently, but we have not figured out its meaning yet. It is not accompanied by any signing. Any guesses?!