MediaPost has an article by Steve Smith:
Likewise with phones, drilling for applications and WAP favorites, passing photos to one another and downloading music is just on the other side of the tipping point of convenience. The content is not that good to induce us to learn new habits — and the alternative, easier channels to the same information are just not that far away.
I think that mobile content would do well to get over itself. Let’s face it; having in-hand my headlines, email, games, MySpace, etc. just is not that important. Mobile data is convenient, which is different from important. Important is connecting with family and friends, which is why we learned to navigate phone interfaces to begin with, and why low-tech SMS is the mobile cash cow that mobile TV can only dream of becoming.