What's the straight dope on nonstick cookware and the dishwasher?

What’s the straight dope on running nonstick cookware through the dishwasher?

Most manufactuers either don’t reccomend it, and some clearly state that doing so will void the cookware’s warranty.

I have a couple of All Clad skillets and an Analon pan that I regularily run trough the dishwasher, and I haven’t seen any problems.

Of course, I also use the minimum amount of detergent and turn off the “heat dry cycle”.