If they added phone to the next tablet. I would not buy it. Not because I would not want to but because it would become too expensive and data rates in my country are prohibitive so there would be no benefit there for me, although I would be paying extra for the device.

What may make sense is if; as someone else said if they include the sim card slot for those who want it. So that those who don't can ignore it. If data rates come down perhaps I can use GPRS, as that is the only thing available here.