"Developers set the price for their wares -- or if they want, tag them as free -- and receive 70 percent of the revenues; Apple keeps 30 percent but provides all the marketing muscle and the bandwidth.
iPhone owners will be able to reach the App Store directly via either a cellular data connection or a Wi-Fi hotspot, pay for (if necessary), and download an application. In addition, users will be able to reach the App Store from iTunes on a Mac or PC; the computer will later push the downloaded applications to docked iPhones."
