But, UNIX is tuned more as a network OS and is just tuned to be faster for that. Similar to LDAP but predates it. But will only be used for OS X boxes or NeXT boxes. Not cross-platform much at all. Classic Classic is a transition.
Transitions take forever, and take longer the better they work.
Doesn't have same features as Cocoa apps. Better to use when building apps from scratch. Cocoa apps will not run in OS 9. Closing points 1. If you don't do anything stupid, you won't have problems.