The bottom line for me is we should work toward a market where any device can operate with any phone number on any network. That is the architecture that has made the internet such an unbelievable platform for innovation.
The mobile market, if set up properly, may have even greater potential for innovation. The only thing that is currently holding it back is that the business and technical architecture of mobile is based on closed systems and exclusive contracts. It feels like we are moving, slowly but surely, in the right direction. That's good to know as a user of mobile devices and as an investor in the mobile web.