He's finally loosening up enough to play some. He's still a bit leery about playing with Einstein because Einstein barks when he gets excited. However, he's playing with Chris. I've tried but he seems to be more interested in getting me to pet him rather than play with him.
I put a bunch of photos, including a movie clip of him playing with his platypus, over on the .Mac site here. Let me know if the movie doesn't play for you.
I removed the old Linus photos from the Flickr site. I'm going to be using it for a cool new knitting community over at Ravelry but this is the non-yarn site so I won't bore you with it.