What we know about Windows 8 Release Candidate - http://winunleaked.tk/2012...
Mar 25, 2012
from
"We know the Release Candidate of Windows 8 will be shared with the public between the end of May to the beginning of June,
The Release Candidate is still labeled HB1 in the ISO tag, this mean actual builds are only « Post-BETA »."
- LANjackal