I spoke with Pioneer yesterday about upgrading 'firmware' with the 80MT disc and the impact it would have on my N2. He said that the firmware would allow the N2 to do all it could do, but wouldn't make it an N3, 4, or 5. Additionally, he remarked that to upgrade the N2 to a N3 - 5 would require various chips to be replaced that held new icons/graphics, etc for the user interfaces with improved functionality with various add on devices. About a year ago I had an extensive dialog with one of the 'upgrade' shops. He remarked that he had to get additional chips manufactured, before he could upgrad