I too am glad to hear that they took care of your problems. I have never experienced any problems like that with mine, and I got it last year at Half Christmas, I think. Half Christmas 2010. My kids use it non-stop. I use it a lot myself when on the go, but they're always playing games, texting, music, etc. on it all day every day (we homeschool and a lot of their educational apps are on there). My problem was that on two different devices it began taking several hours to charge, and would say "not charging" while it was doing the (slow) charge. Both times they replaced it. The first time they gave me a little grief since it was out of warranty, I didn't have Apple Care, and there was a dent in the back of it, but since I could prove that it started after an operating system update, they replaced it. The second one happened within a couple of weeks of getting it, but the third time was charm. I now keep it in a pretty sturdy case too. They told me not to charge it using the iMac and data cable, but to only charge it using the wall adapter that came with the iPad, so that's what I do.
