If this is true, then that is in my opinion a Good Thing. After using FreeBSD and Linux on my primary desktop for years, I switched to Mac OS X 10.4 (Tiger) in Q4 2006. Although I've not had major problems, OS X has been pestering me now and then:
- crashing background processes (sometimes several times an hour)
- spontaneous reboots (1 or 2 per year)
- failures to come back to life after being suspended (closed lid on MacBook Pro)
For me, a desktop computer should allow it's users to work efficient. For this, you need sufficient speed, proper functionality, an effective keyboard/mouse/touch interface, stability and security.
In my experience, the OS X 10.4 operating system works nicely, but has it's stability issues. It's probably more stable than Windows, but definitely less than Linux and FreeBSD.
Update (June 10): Indeed this has been announced by Apple as anticipated, see the Apple site for more information.