https://marco.org/2010/01/24/if-you-announce-a-good-idea-a-year-before-you-can
If you announce a good idea a year before you can implement it, you had better be the only company in the world that could implement something that customers will think is a ‘good enough’ version of what you promise. ‘Good enough’ plus ‘cheaper’ or ‘for sale sooner’ is how the world got stuck with Windows.
— Matt Deatherage, with an excellent point that I’d say is also critically important for the iPhone’s success now that there are some “good enough” Android smartphones for Verizon’s network.