Panasonic had this baby on display this week at the Tokyo International Book Fair. It's just a demo unit, not the finished product, and it's based on a 7" (1024x600) screen and it's running Android v2.2 on an unnamed dual core CPU. It has Wifi, a camera and a microSD card slot. According to one report it also has a web browser.
If you check out the video, you'll see that it shows a video player, web browser, and Youtube. That's a pretty good sign that the tablet will be open, and that means you can install your own apps. The tablet will also ship with 600 titles. The final specs, release date, and price haven't been announced yet. But Panasonic did say that this ebook reader is going to be released in Japan and it will use the Rakuten ebookstore, which will stock 10 thousand titles.