By Brandon Griggs and John D. Sutter, CNN
CNN's John D. Sutter is attending the Apple announcement and is posting updates to the CNN Tech feed on Twitter, @cnntech
San Francisco, California (CNN) -- Apple CEO Steve Jobs on Monday introduced the newest version of the company's popular smartphone: iPhone 4.
"We think it's the biggest leap we've taken since the original iPhone," Jobs told an enthusiastic audience at the company's annual developers conference. "We're really proud of it."
The phone comes in two colors -- black and white -- and will go on sale June 24 in the United States and four other countries. It will cost $199 for 16GB of storage and $299 for 32GB.
Jobs said iPhone 4 will be "the thinnest smartphone on the planet" at 9.3 mm thick -- 24 percent thinner than the iPhone 3GS, the company's current model.
The device will have a front-facing camera for video conferencing, and the camera on the back will have an LED flash, Jobs said. The phone will have a 5 megapixel camera with a backside illuminated sensor, which he said is fairly new to smartphones.
