I called this move a week or 2 ago. Kwame still is reasonably young, and has proven himself to be able to affect games with his D. I like this signing.
I actually like it too. Nazr will definitely be the starter at the beginning but having Kwame off the bench won't be a bad thing. At worst he will put up Chandler-like stats at 1/10 the cost. And he's better than Diop. Hell I'm better than Diop.
Now if we can just sign Adam Morrison and we will have MJ's 2 biggest busts together on the same team.