There's also none of the usual regulatory markings on the back -- even if authentic, this may be a prototype that doesn't reflect the final result.

ENGADGET

This FCC prototype may not be the final design, but if nothing else, it's proof that the device is evolving.

ENGADGET: Razer's gaming tablet drops by the FCC, leaves handles at home

The tech bloggers at Gizmodo, which got on Jobs' bad side earlier this year with video of a prototype iPhone 4 before the phone was released, pondered their possible fate if the story was true.

CNN: Steve Jobs ninja story won't die on Web