I feel like he's missing the point of an ecosystem. It's fine that he only uses a few apps on his phone, and that most other people probably do the same. The problem is that those "few apps" that most other people use aren't the same "few apps" that he uses.
I've heard that mentioned before, but that's not what I'm seeing. I don't use 10 random apps from the App Store. I use the 10 default apps that come with the phone. Except for Twitter, I consider the 3rd party apps to be completely expendable without materially affecting my enjoyment of the phone. From other "just a few apps on a daily basis" users I've seen, they tend to use the default apps as well. It's not a rand…
This is a variation of m0nitaly's point: I would say "except for Instapaper, Reeder, and Twitter..." and Jasber would say "except for Rdio and RunKeeper..."
Even if apps 1-10 are native, I'm hanging onto my iPhone for numbers 11 and 12. The native iOS experience is great, but those two or three non-native apps make it sublime.