One of them is about mobile as the 7th mass medium. This article helps me to explain the difference between mobile internet and web. We had problems with some people, who were arguing that it’s the same. This articles game me some really nice arguments how to show the differences. The article is full of examples.
Second article is depressing one. It describes one nice mobile innovation example and the author analyze, why reality is so much different than all those nice mobile ideas.
I can recommend you both articles.