He can also climb onto chairs now (but sometimes can't climb off again) While we were on holiday he looked like such a little old man sitting on a garden chair that we couldn't resist giving him the newspaper and taking this photo.
He is also picking up more signs and on the way home from school signed two together - goodbye cat. He tries to copy animal sounds and says "Noah" in a sing-song voice.
We found him by the playstation the other day. The microphones were still out where Lily had been playing Singstar. Isaac had a microphone to his mouth and was trying to sing!