Sure, you already peeped the next version of the iPhone months ago, thanks to that hapless Apple engineer’s fateful beer-haus outing.

But Apple Chief Executive Steve Jobs filled in many blanks about the gadget on Monday during a nearly two-hour on-stage unveiling of the iPhone 4 in San Francisco at the Apple developers’ conference.JobsiPhone4

Herewith, the key features of Apple’s latest smartphone, as well as some of the other noteworthy nuggets that Jobs ticked off at a rapid-fire pace during his presentation.

THE PHONE: The front and back of the device are made of chemically-strengthened glass, while the rest of the device’s body is made of stainless steel, which does double-duty as the phone’s antennas. At 9.3 mm thick, Apple says the new iPhone is 24 percent thinner than the existing iPhone 3GS, though it was tough to tell any real difference in size when holding it.

Apple loaded the iPhone 4 with its own silicon, the A4 chip, replacing the Samsung application processor that was under the hood of previous iPhones. Apple also said the iPhone 4 has a larger battery, which the company says will extend talk time to seven hours, up 40 percent from the previous model. A 3-axis Gyroscope now complements the existing accelerometer, providing additional motion-sensing capabilities to enhance video games and other applications.