Hi everyone. My wife and I recently sold an iPad 2 on eBay hoping to make a little extra money as we're in a rather dire financial situation right now due to my wife losing her job. Now the buyer is claiming the iPad 2 never came, though I suspect they are scamming me for a few reasons. First, I shipped the item Priority Mail without a tracking number, delivery confirmation, or signature confirmation. I admit that was a huge mistake so let's please not focus on that, I have already been scolded enough times on the eBay forums. Here's what I want to know, a user on the eBay forums suggested using the serial number to see if the device has been registered yet. Is that possible? I have a photo of the serial number on the back of the box but I assumed that was just the serial number for all iPad 2's, not for that specific iPad 2. Can anyone confirm whether the serial on the back of the box is for the device itself or all iPad 2's? And can anyone please confirm if there is a way to see if it's been registered using the serial? Thank you!