I recently ordered and received a new iPad air 2 WiFi + Cellular via apple.com. Activating cellular data service on the new device has been a big ball of frustration. On the iPad, I went through the Cellular > AT&T > wizard. After choosing AT&T, I was prompted to sign in. For whatever reason, the email address and password I normally use to sign in to att.com didn't work on the iPad. I currently have 2 phones and an existing iPad on my account. After this failure, I tried calling AT&T cust. svc. to get their help. It didn't go well. The rep asked for the IMEI and ICCID off the Settings > General > About screen. I provided the IMEI number but the ICCID was blank. The rep said that the SIM card apple provided was faulty and suggested going into an AT&T store to get a new SIM card. If the ICCID is blank, does that indeed mean that my Apple SIM card is faulty? My guess is 'yes', but it would be nice to get confirmation from someone who knows this stuff before I make a trip to AT&T retail.