here's a quote from the new bluedisk cfw thread:
Originally Posted by cfwprpht
Folks Bad news
Lv0 is resigned and the most of you know what that means. But anyway something good, they don't have 4.00-4.11 priv key. They still use 3.55 but first we need lv0 static key or we find a other way.
So, they got the decrypted bootldr and used it to decrypt and resign lv0.
This is the proof devs are not scared of being sued by sony, they just want to use the exploits they found to make re-drm stuff and milk money from those stupid enough to buy it.