Combo of modern hardware, App Store ecosystem makes it a clear winner. Eleven months ago, Apple released the first iPad, a touchscreen handheld computer that redefined tablets, disrupting the laptop/desktop market just as the iPod did to music players and the iPhone did to smartphones. On Friday, 15 million iPads later, Apple released its successor, the iPad 2. Many people — myself included — predicted long lines and sell-outs, just like last year. So did Apple deliver?