Mayday is cool. I had a kindle fire hd and the power button wouldn't work. The only way to get it to turn on was attach a power cord. I hit the mayday button, the rep talked with me briefly and then auto-ordered a replacement. I didn't have to turn on my computer, I didn't have to dig up a customer service number, I didn't have to sit waiting in a customer service chat (which is usually more like email with the amount of time between responses). Is saving me 10 minutes revolutionary? I'm not sure, but it sure was nice.