It's a show-reel of sorts I think, showing what the screen's capable of. Drivers won't be analysing graphs mid-race. I think it's great from a fan's point of view. More info, more interest. The on-board cameras might highlight things from this screen we were previously unable to see.
Currently it's hard to make anything out - during Sky analysis sessions with Antony Davidson on the Sky-pad, they sometimes enlarge a grainy section of the dash to show differences in gear changes between drivers for example - it's usually hard to see anything. This screen may well show these things with more clarity.
Of course, the proof's in the pudding - what do the drivers think? Looking forward to finding out.
And can you play Flappy Bird on it??