In fact, force quits are flat out gone. The swan song of OS X, protected memory, is intact for the times when applications just disappear, but those mysterious activities it gets distracted with for several minutes leave me wishing for the traditional system freeze. It's also very comfortable, very intuitive, friendly, fast and flexible. It's the MacOS we've been promised for years. Sure, Internet Explorer crashes 9.1, as it will in OS X as soon as they figure out how to crash it.
Most applications behave quite well though, as does the OS itself.
It don't matter. OS X is the future. But all of these things will change. We will look back on OS 9 with the same wonder System 6 now posesses. Apple, the Apple logo, and Macintosh are registered trademarks and Mac OS is a trademark of Apple Computer, Inc.