I just read a good summary post on ribot.co.uk about David Marcus' mobile talk. For me there are many open questions, so I want to spread out some thoughts.

Mobile Content vs. Web Content
What is mobile content? Is it necessary to distinguish between these two? People and companies say mobile content is worth billions but web content has to be delivered for free in most cases. Why do consumers have so different views or perspectives on similar information products?

Are mobile contents mainly ring tones and SMS and all information products that are closely connected/bound to your mobile device and useless in other environments? Or is it just the content produced with a mobile phone and thus it is more valuable and specific, like instantaneously published and delivered pictures taken with your cell phone camera while on holidays. The first is a more traditional perspective and the latter the new evolving perspective by utilizing the Internet and its services as a way to deliver a better experiences and more powerful applications.