Just a note: NSCache is dangerously busted (as of Mountain Lion GM, 10.8 (12A269), including 10.7), and tends to deadlock rather easily. Particularly, when the

Just a note: NSCache is dangerously busted (as of Mountain Lion GM, 10.8 (12A269), including 10.7), and tends to deadlock rather easily. Particularly, when the system sends a "memory pressure" notification, such that the cache is supposed to evict things. Stay away, for now. http://openradar.appspot.com/10916098 http://openradar.appspot.com/10916098