Do you see the large white button on the side of the screen? It's a scroll button (kinda like a trackball). I don't know why we don't see it more.
I've looked over the manual, and Vodaphone seem to be planning to push this as a phone, not a tablet. There's instructions on how do do voice and video calls, which rather odd. I didn't find a microphone.
No word yet on price or release date.