So what? Why should that bother Apple so much? They sold the mouse. Who cares how the user uses it? A user who chooses to use their mouse while plugged in does not in any way affect the mouse's manufacturer. My Apple keyboard lets me use it while it's plugged in, and the world hasn't ended. Why didn't they put the charger on the bottom of the keyboard too? Why don't they make their phones so you can't use them while charging?