Earlier quoted context omitted.
I've always been under the impression the reason mesh networks haven't taken off is because of the cost & speed benefits of centralized colocation data centers and trans-continental backbones, but maybe I'm just not paranoid enough.
The paranoid conspiracy theorist in me also suspects that this is why the FCC fought against UWB approval. http://stevencrowley.com/2010/09/02/ultra-wideband-how-regul... There are many devices using UWB, but as far as I know, none of them allow long-range communication: http://en.wikipedia.org/wiki/Wireless_USB http://www.gefen.com/kvm/product.jsp?prod_id=4318
- UWB failed because it was out-competed
- it was out-competed because it was using a new spectrum, while the competition was using the already existing 2.4GHz channel, so it had to deal with the FCC when the competition simply didn't.
i.e. it sounds like they just had an extra hurdle to jump (and a bureaucratic one at that) that made it hard to win, rather than the FCC actively attempting to prevent it's use.