People familiar with this year's plans say Apple's iPod roadmap for the fall now calls for as many as four new models -- most, if not all, will employ NAND flash -- including major evolutions of both the flagship video iPod and iPod nano lines. It's these two iPod product families which are expected to receive the Mac OS treatment, though to varying degrees.

Sources in the Far East -- where Apple manufacturers its digital music players -- have recently vouched for sightings of a "full screen" iPod, which they believe will finally make its debut ahead of this year's holiday shopping season. The players are said to run a derivative of the Mac OS-based iPod software introduced as part of the company's iPhone handset back in June.