1) what should I be looking for if I just want to relay a bit of info over long distances every so often?
2) do you need a "network" like verizon or something to use them? (I'm gonna guess no)
3) how would an arduino communicate with one? Through spi, i2c, or what?
4) anything else I should know?
So whos network would I be using? Would I choose?
So the payment would just be the sim card, I wouldn't need a plan or something, right?
How much would that typically cost?