PS3 Firmware 4.20 was released a few days ago, and it looks like a few other changes made it into the system software that weren’t mentioned in the official changelog. A couple of changes were picked up by PS3UltraSlim that might back up rumours of a super slim PS3.
For example, the XMB option for “Eject Disc” when you hit on a game disc icon has been renamed to “Remove Disc”. A small change that indicates the mechanism for inserting and removing disc may be changing from a slot drive to a open tray drive as seen on the PSTwo (not PS2) and PSOne.
In addition, the XMB’s references to the “Hard Disk” have also been renamed. It now mentions “System Storage”, suggesting a hardware revision may drop hard disks in favour of Solid State Drives (SSD) or Flash Storage.