Whither be Withered Stateless Linux?

I've been pocking at Stateless Linux for a while.

Probably since it was called Diskless Linux.  Names change.

Anyway, I stumbled over a stateless linux page referring to a tech preview in RHEL5, which sounds awesome.

Sadly it doesn't appear to be available.  "Install FC7," it says, not knowing that FC7's stereotypical 3-week support window closed at least a week ago, and thus any projects using it will simply not work.

So where did the Tech Preview go?  If it was a tech preview way back in 1992 or whenever RHEL5 was released, should it not be at least a tech preview now?

I worry that the Open Source Community has an attention span even shorter than mine.