It is always nice to find hidden menus in the PS3 system.
Agreed.. It is nice!
Seems like a QA or debug feature for the engineers. "Did this thing flash right? Hmm, let me check." I wonder why they keep these things in.
they probably keep these hidden features in so they can check the units that are sent back for repairs. it would also be interesting to see if the list is different if a cfw is installed on the system.