Xander's reached that stage of speech where he's just exploding with words, adding lots of vocabulary, expressing more complete thoughts in longer sentences, improving his pronunciation. It's really great.
But with that, goes the slow disappearance of the very cute mispronunciations. The most recent favorite of mine to drop off is "Jecca." Sister is now referred to as Jessie.
Everyone will be pleased to know he's still saying "No way!"