Contrary to some expectations, the iTV set-top will only play a small part at an Apple press event in September, a source for BusinessWeek claims. The company is instead expected to place the emphasis on 99-cent TV show rentals, with the idea that people can watch them on iPads, iPhones and iPods. An essential component may be the introduction of an iPod touch with a Retina Display, allowing Apple to say it has HD (or near HD) resolution on every device.