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
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.