Apple CEO Steve Jobs disclosed a few more salient iPad facts in the immediate aftermath of Wednesday's product announcement, a video interview reveals. Speaking with Wall Street Journal writer Walt Mossberg, Jobs commented on the display of the tablet, which is a 9.7-inch IPS LCD, an unusual choice for something also meant to serve as an e-book reader. Readers like the Kindle use e-ink, which is easier on the eyes but also significantly extends the battery life of hardware.