Multiple applications on multiple monitors is one thing. In a typical day, I probably interact with three or four dozen real and virtual machines running three or four different OSs, accessed via three or four disparate remote desktop technologies.
But honestly, the desired effect could probably be more easily achieved by tracking where your eyes are looking. Of course, I can't even get this huge rat's nest of shit to quit turning my Num Lock off, so what do I know?
I'm all for tech for tech's sake (I guess?), but what would the advantage of this be? From the little I understand about hacking, this wouldn't provide any more security than typing your password. Maybe on local devices like door locks or ignitions, perhaps?
But honestly, the desired effect could probably be more easily achieved by tracking where your eyes are looking. Of course, I can't even get this huge rat's nest of shit to quit turning my Num Lock off, so what do I know?
Still, kinda cool.
@8 FTW with the meta-commentary on comments. :-)
And yes, RF waves (presumably) are easy to sniff and replay, until we invent some new way to isolate it.