There was virtually no chance of any of the closed systems surviving. It is impossible for a single company to produce a computer as cheaply as the parts assemblers do.
Looking back it's hard to find a scenario that would see them survive. Apple pulled it off but sheer luck, guts and a cult of personality around Steve Jobs, take away any one of these and you'd be looking at a solid Microsoft world with only Linux asa an alternative.
Amiga's only chance would have been to embrace Intel hardware and remove reliance on the custom chips or put them in an video card that would fit in an intel box. Even then it would be hard pressed to survive a dogfight with Microsoft, especially in partnersip with IBM, which meant computers back then..
Face it, there's nothing but no win situations. There's no way that we could have had Atari and Amiga/CBM as viable companies in 2007. It was all a dream.
Actually their is one way, unfortunately it involves the use of a Tardis to go back in time armed with the for-knowledge of what has happened. But even then you'd never convince CBM to go open platform with Amiga.
Plus you have to remember that a lot of us early Amigans suffered badly from Apple envy, we wanted an Apple, but back then Apples were more expensive than Amigas. I still remember the thrill that Emplant brought to the Amiga community. We could run MacOS! Even though it wasn't as sophisticated as AmigaOS, it was wonderful.
