I'd say it does matter quite a lot, which is why I use Fedora on my computer and Android on my phone. OS X itself is even rather open by comparison to the iPhon

I'd say it does matter quite a lot, which is why I use Fedora on my computer and Android on my phone. OS X itself is even rather open by comparison to the iPhone OS platform, which illustrates rather nicely that Apple tends to favor openness when they're the underdog and closed platforms when they're in the lead.