Hi, I upgraded my 32 gb, wifi,3g iPad last night with no problems. Worked fine last night, and this morning until around 11:00 AM. Picked it up to use again around 12 PM and it is totally dead. All my usual trouble shooting ideas not working. Press power button, hold in power button, press power button and home button at same time. Plugged it into charging adapter and it won't come on, then plugged it into computer and iTunes does not even see it, iPad won't come on. I guess I will call Apple, and take it into the nearby Apple Store. Anyone with this issue, and trouble shooting suggestions? Maybe just a coincidence, and the battery is dead, although it did have at least 50% charge. (jbmac username does not stand for jailbreak, it is my intials) Thanks!