I was using my iPad earlier this evening on a FaceTime chat with my sister. I remember the battery had 70+% juice left. I put the smart cover on it when I was done, thus putting it to sleep, and placed it on my desk. My wife just came into the office and sniped the iPad to play Angry Birds. She walks all the way the other side of the house into our bedroom and calls me from her cellphone asking how to turn the iPad on. I told her it should have come on the second she took the smartcover off. I walk in to find a dead iPad. No matter how many times I pressed the home button or the power button at the top, I couldn't get the iPad to do anything, it was dead. I even plugged it in thinking possibly something could have happened to the battery, nothing. Just on sheer luck, I decided to hold down the power button AND the home button for some time. After about 10 seconds or so of doing this, the iPad turns on, but not fully, I get a small apple icon on the middle of the screen and it takes another 2 minutes to fully boot up. Once it finally fully booted it up, it showed 76% on the battery. The iPad is fully functional and working now. A few questions, what the hell happened? Second, should I be concerned that I may somehow have a defective unit?