Mark Zuckerberg: Why we don't want to build a phone - Fortune Tech

Excerpt from an extensive interview

"Fortune: I have to imagine that when Google (GOOG) developed Android as an open platform, they didn't mean for Facebook to do this.
Zuckerberg: I'm not sure how they're going to react. We're building this as software that you can download on to phones. One of the nits about Android is that the software [on each phone model] is a little different, so it took some work to make it work on every given phone. So to start, we are only going to support downloads on five or six phones. I think that Google has this opportunity in the next year or two to start doing the things that are way better than what can be done on iPhone through the openness of their platform. We'd love to offer this on iPhone, and we just can't today, and we will work with Apple to do the best experience that we can within what they want, but I think that a lot of people who really like Facebook -- and just judging from the numbers, people are spending a fifth of their time in phones on Facebook, that's a lot of people. This could really tip things in that direction. We'll have to see how it plays out."

Mark Zuckerberg: Why we don't want to build a phone - Fortune Tech