They seem to take a verrrry long time between albums. Probably because they have so many competing side projects.
I actually like "Stereotype A" better than "Viva La Woman." "Sci-Fi Wasabe" is one of the funniest things I've ever heard. It's like that "MTV4" SNL skit with the Japanese girl group, but serious.
Sean Lennon's pretty handy with a bass. He needs to play more.