Challenge to Internet
I agree completely that wireless telco service is going to be a challenge to the internet. First, they have a built-in notion of identity and billing capability that is missing from the internet. You can actually practice capitalism (for better or worse) in this domain, and we're seeing an explosion of creative new products as a result. Because you have identity and billing, you can do micropayments, and you can get a better handle on spam and crime (not that those are entirely absent in mobile phone systems of course).
The downside is that the system is less open to the general public. It's a pity that the internet, email and the web were not designed with more foresight about issues like identity and spamming and abuse. CERN was thinking about how to put physics journals online when they invented the web, they weren't thinking about Islamic terrorists posting video of beheadings.