Re: Steve's impact
I think that's true to some extent, but it's also the main problem with a closed ecosystem. Yes it gives you total control over how the brand is perceived, but it also means that innovation is restricted to you alone and in Apple's case, it meant at most one handset a year.
In Android's case, there's a new phone every few weeks, with many more companies competing with one another as well as with the iPhone, which means cheaper hardware, more regular updates and better products overall.
I doubt Jobs has as big an impact as some think too. He was a hype man far more than he was an ideas man, especially in the last decade or so of his life.