[marcosdumay]

> And Most applications need "man in the middle" services anyway

For all instant communication (VoIP, chat, file transfer, setting your thermostat), a man in the middle schema is a hindrance. The communication where you publish, and then somebody reads data need a man in the middle.

If your thermostat does not have a public IP, you must buy it as a service, and it'll never really be your property. One can live with that in a thermostat (but let's not pretend it's a good thing), just think twice before automating more of your home...

[johnjac]

I also need my ISP, my power company, etc. I'll never be an island. This IPv6 utopia where everything is peer2peer just isn't going to happen, there is too much value in central services.