I'm a fan boy because I don't have time to waste on self-supporting my primary devices?

If you're in the US, and you are using a US carrier, I'm pretty sure that, yes, they can. You're in violation of their terms of service, and thus they can deny you use of their service.

And, again, as with the "primary device" logic: I know that there are plenty of things I can sneak past the carrier. In past years, I've don them. That doesn't mean it's a good use of my time, nor my primary device. To suddenly loose my phone number, and phone service, because the carrier has decided that I've been outside of the TOS too often ... and then miss a critical "on call" call from work, because my servers are down, is just not acceptable. It would be irresponsible for me to go down that path with my primary phone number (and I don't feel like having a half-dozen phone numbers just to tinker with these things).

There are a lot of local phone service companies that have massive loopholes in their TOS. I know, I've taken advantage of them before.

And this is going to be my primary UMPC, not phone. I can use my basic motorola flip phone and this no problem. I'm one of those, can and will carry around two devices. I'd love a phone that can do all this, but there just isn't one.

Alfa. And Nokia's delays with the N900 don't even come close to getting me TOTALLY PO'ed as Fiat-Chrysler's delays in bringing the Alfa back to the US.