I'm not sure what is supposed to be noticed in the second video, but the first one is basically already possible with current tablets, other than the "everything is transparent".
I mean, there is no deep conceptual difference between something like leafsnap and what is shown there.
But even looking at that, it still doesn't show why a tablet form factor (thinking >9" diagonal) is better for this things than something sized like a larger phone, or a foldable thingy like the (sadly dead) MS Courier.
The main difference I was getting at is thickness/weight. Tablets now are too heavy to carry around like a legal pad for long periods of time. When they become paper thin and aerogel-light, they'll be killer.
Other than that, it's not so much the form factor that's different from now, it's the software. As awesome as Ubuntu Tablet is, I think all of our tablet OSes carry too many PC relics with them. The OS in those videos looks nothing like software now.
I mean, there is no deep conceptual difference between something like leafsnap and what is shown there.
But even looking at that, it still doesn't show why a tablet form factor (thinking >9" diagonal) is better for this things than something sized like a larger phone, or a foldable thingy like the (sadly dead) MS Courier.