There are some trying to do this. Shawn Fanning's Helium is one of them.
I looked at Helium. Problem is that when you sell your own design and don't publish your designs and standards you become a single-source vendor.
As a manufacturer, I can't go with single-source vendors. I need backups and pricing competition and etc etc etc. So here we are, still writing code for WiFi radios and leveraging legacy OSS stacks to do the encryption and transport.
I looked at Helium. Problem is that when you sell your own design and don't publish your designs and standards you become a single-source vendor.
As a manufacturer, I can't go with single-source vendors. I need backups and pricing competition and etc etc etc. So here we are, still writing code for WiFi radios and leveraging legacy OSS stacks to do the encryption and transport.