Also allows unsigned pkgs to be installed and debug pkgs. Kmeaw everything had to be signed.
Also some people are very particular and do not like how MFW builder will switch the locations of install package files and app_home/ps3_game. If for some odd reason this bothers you install rebugs package manager and it will place them back in the order most people are used to seeing. I like the package manager better anyway, because you can install packages from internal drive and other default locations and it allows deleting pkgs.