It does honestly seem like Google stumbled into a goldmine. Google basically set out to create the Sidekick 2.0 (I don't really get the constant "Android started as a Blackberry ripoff" claims, when there are much more obvious Danger roots). I really don't see Page/Brin/Rubin in a room in 2006, rubbing their hands together thinking they were going to shock the world. It seems more like the Google guys were big Sidekick fans and saw the chance to work with Rubin for relatively cheap. But they kept their options open, made a lot of cautious small bets rather than going all in. They didn't make the iPhone, no, but they placed themselves in a position where they could react to iPhone. By being open to the opportunity and a lot of luck, they essentially became the only choice a monster sized industry had in the face of huge disrupting new competitor.

Google often get slagged for the unfocused, perpetual beta thing. But laser focus is overrated. For example, given the choice of only picking Chrome OS or Android, a laser focused Google would have never gone Android. Overall I think it is much better to admit the future is unknown, and be prepared (especially for a large company with Google-sized resources).