Like Pirate895 said, they are looking for the bugs. You know how someone found a way to bypass the security on 2.0 jap already? Sony saw that. They are waiting to see what else happens to their precious 2.0. I also think homebrew should only be worked on for the US versions when they come out... not the Jap 2.0.... well, it CAN be worked on, but nobody should release ANYTHING until the US version comes out.