Ok, so I just received my 4G iPad LTE yesterday and went to the AT&T store to activate the cellular plan on the device. I didn't bring my iPad so the AT&T rep asked me what model iPad I had, and I said the 4th gen. He then handed me a nano-SIM card which I figured it would use the same SIM card as the iPhone 5. NOPE! The thing uses a standard SIM card. WTH? I thought Apple was moving to the nano-SIM cards? It's not really that big of a deal, but now I have to go to the AT&T store again to swap it out with the correct card. Anyway, I just wanted to pass this along for anyone getting the new iPad. Edit: New iPad uses micro-SIM not a standard SIM card. Thanks Eug for the correction.