What's the small hole on top of the camera ? Autofocus ? small flash ?

I have a BT GPS so I don't mind about the integrated one, and I can live without the slide keyboard, so I am happy I can still live with my N800.
What I want to see now is the new firmware

And from the Skype picture I only see "make calls" and not "make video calls" or something similar, so I think it should have the very same hardware as the N800.

Also I see a "play" button on the bottom side of the tablet.