It would be interesting to know whether there's really a tendency for gifted children to go from nothing to real talking...
My dd (just turned 6) certainly fits the bill. Though she did have some words -- all nouns -- much earlier, her sentence speaking came on like wildfire. At the age of 22-months, she said her first independent sentence: "Get her out!" (regarding her baby sister sitting in a seat she wanted). By 23-months, she was saying, "I want to go sit on the upstairs potty and read library books." And, "I want to get out of the car and go to the beach with Mommy and Daddy." I actually wrote those down in her baby book because I was so shocked at the time!
