Asterisk + webrtc + Firefox os
Really want a phone that’s just a browser. Like the whole boot2gecko/FirefoxOS thing. Then I’d ask the telco to sell me a “data only” plan and get my phone number from a company that sells phone numbers and manage the call routing myself.
The idea of a “data only” phone plan kind of mirrors the whole “naked broadband” thing that ISP’s are selling.
Hardware should be optimised for JS.