Lots, lots, LOTS of stories on this, so I’m going to link you the one at the New York Times and let you Google the rest.
I’m not a lawyer, so I’m not going to try to go into the detailed ramifications of this ruling, but it’s good to see Big Brother being kept from growing bigger.
The problem with big, table-sized touchscreen computers is that they have an awful time telling who’s doing what – if you and someone else are both touching it and doing stuff at the same time, you’re likely to confuse the poor thing. Which is why a couple of researchers developed a system to track people’s shoes. While there are some problems with the system, and it’s still not 100% accurate at determining who’s doing what, it’s a very interesting take on how to solve that particular problem.