Actually. If you look at the edges, there's a clear plastic lip. I believe that's a clear plastic cover which most likely snaps off and goes under the unit (so you can still see the screen when protected unlike the current 770). The mystery square on the screen appears to be a sticker stuck to this clear plastic cover. The little divots/speaker holes all over it are a BAD idea. They'll fill with grime really quickly (internet users have sweaty hands).

If that's a web cam and it's integrated, I don't like it. It looks like a nubby antenna for cellular access to me. It's also in the way when you hold the tablet whatever it is.

I'm not much of a fan. If anything's gonna stick out (except for the power/USB cables), have it stick out of the top.

Hoping for more news on the 670. (not a typo)