The same for me, just as the majority of people here have already stated: I will purchase one, 3G would be nice, but is not really needed.

But as adding a 3G modem complicates a couple of things (>= 3 SKUs {no modem, EU, US}, etc.), involves risks (makes the hardware different than the Jolla tablet from SFOS's perspective) and costs quite some time and money to design, test, implement and produce, my suggestion is: Do not do it.