Well enough people have been asking about it that I suppose it warrants an announcement, the newest version can be found here:
http://code.google.com/p/chipmunk-spacemanager/
This version works with Chipmunk 5.3.4 and Cocos2d-iphone 0.99.5; it has a bunch of bug fixes and some new features are:
* Retina Support
* Linear Explosions (pseudo realistic)
* Pulley constraint (w/drawing support)
* Better support for 1 body to 'n' shapes
* Small API additions
* More examples!
Some things that cocos users might hate me for include separating the cocos2d specific logic into a separate class named SpaceManagerCocos2d and maybe less so for removing all the "schedule" calls (it figures out what needs scheduling now).
