This is a good point, and I agree with you, but it seems there are better methods of isolation. Cell phones do this pretty well, and they are the dominant platf

This is a good point, and I agree with you, but it seems there are better methods of isolation. Cell phones do this pretty well, and they are the dominant platform anyway, so I guess we're moving in that direction. I just wish I could use the UI features of a PC for all they offer beyond screen-based gestures.