Akihabara News found this Android tablet at Ceatec this past week. It doesn't quite look the same as the Espresso Firma I showed you a few days ago, but the resemblance is striking. Here's how Akihabara News described this tablet:
MUPEN of M707, an Android 2.1 table with a 7” resistive touch panel including the company Smart Pen technology (Powered by Pegasus) that will convert everything you are writing on a block note to a nice digital note.
"Smart Pen technology" sounds a lot like what the EF is supposed to be able to do. You use the special pen to write on paper and the tablet records the strokes and translates them into a graphic image.
This tablet was found in the Yifang booth, and based on the similar pen system on their website I think they developed it originally.