Apparently I just posted too early.
After DS took a 3 hour nap (whoa, meganap!), he woke up with tooth #2. Last night, he took his first steps as DH and I played with him, and he possibly started saying his first word!
I'm not sure about the word thing, as he hasn't done it today, but last night he kept holding up his lovey (a stuffed dog named Gus) and saying "Goo".