It's funny how so many people are suddenly mischaracterizing the Apple II or the nature of early personal computers. The very first personal computers, like the Apple II, were sold as development kits to developers/hobbyists because these were the only people who would even think to buy a personal computer in 1976 and 1977. These development kits contain all of the information one would need to create software and ha…
Indeed, it it the overwhelming triumph of openness in many spheres -- the cheap standard components, open-source operating systems, open protocols -- which means other 'sealed appliance' strategies need to be tried, to explore those areas not ideally served by total openness.
The sealed iPhone/iPod isn't a rival to openness, but a necessary complement and outgrowth. Just look at the Settings > General > About > Legal page. You'll see 20+ pages of mostly open-source license/copyright declarations.