Yes, and it is unmistakable. He puts his arms out as far as they go and then brings them together for a single clap. It is really adorable. Really. This morning he was SO happy it was fun. Many mornings he is often drowsy and just rolls around trying to find a place to burrow his face into and sleep. But this morning he was big smiles and claps.
Here are some more action shots of the crawling attempts. I'll try to get a photo or two of the rug burn on his face from these attempts and also his bedtime burrowing.