About 90 minutes ago Apple honcho Steve Jobs began delivering his widely-expected iPhone 4 presentation at San Francisco’s Moscone Center. “The thinnest smartphone on the planet, 9.3mm thick (a quarter thinner than the iPhone 3GS) with two built-in cameras (one on the front and one on the back with an LED flash), two mics and a noise-cancellation button. Bing offered as a built-in search engine. Display is 4 times the resolution of previous models.” It’ll be available on 6.24.