Well...ok ok, not officially. I've been checking daily to see how everything is going, and in that regimen I started checking the servers. Turns out they added the 5.0 PS3 ISO's today or yesterday silently without notifying the public.
Get the ISO from here:
ftp://ftp.yellowdoglinux.com/pub/yellowdog/iso/
Yum repositories seem to be active as well. Good luck!
No official mirrors up as of yet, but the servers are running strong. I'm getting a solid 700KB/s!