50w ago - Today Japanese site PocketNews (linked above) reports a new PS3 Slim model (CECH-4000 / CECH-4001x) has been spotted registered on the FCC (Federal Communications Commission) site.

While there is little information on the new SKU, the FCC ID is listed as AK8CBEH19C1 and rumors suggest the new PlayStation 3 model may feature a top-loading disc tray similar to the one on the PS2 Slim.

El33tOnline.com also points out that PS3 Firmware 4.20 slightly changed the wording on the XMB from 'Eject Disc' to 'Remove Disc' when you press Triangle to bring up a disc-based game's option menu.. stating, "Sony released a PS2 Super Slim in 2008 that featured an internal power supply and was lighter than the original Slim model."

To quote, roughly translated: "You think AK8CBEH19C1 is FCC ID, so CECH-4001x model number in North America, and appeared in the model number called CECH-4000B or CECH-4000A in the country.