I think the people who state that lack of BYOD is a deal-breaker are those that Tim isn't targeting with this service offering. I'd expect Tim to get some of these people to sign up for the Carrier plan when (notice I didn't say if ) it's offered, especially when (again, not if) the Residential service proves itself in terms of reliability, quality, etc.

As one of the Asterisk/Trix/PIAF hobbyists, I normally wouldn't sign up for an unlimited plan to meet my hobby needs, but I did take Tim up on his generous offer for the $99/yr Founder's club plan as a 2nd line. Given the extent of my use (at least for the next few years), Tim will still be making money off my line. Those tables will turn, though, when my girls reach the teenage years...