I'm probably the only one who is dumb enough to need one of these.
I almost always unplug my table saw and most other tools when I'm done using them. I'm just nervous that someone will come downstairs and hit a switch and get hurt.
Every so often I get ready to make a cut on the TS, push the on switch and realize I have the saw unplugged. I go plug it in and the saw starts up. I forget to hit the off switch because it was never on. Some day it's going to happen when something is near the blade and launch it across the room.
It would be nice to have a switch that automatically turns to the off position or wont turn on if there is no power to it.