Satellite data connection
Have fun with that. The satellite hardware will be larger than whatever is collecting the data, and will increase the bill from the power company quite a bit as well. However, the major problem is that the satellite comms companies charge quite a lot for the hardware to connect in the first place. If places only want to connect up one thing with this, that might be doable, but there is no way they're getting to twenty billion of the things under that model.
I have a feeling that most real use cases for middle of nowhere collection devices fall into one of three categories:
1. The device is located close enough to a place that can provide connectivity.
2. The device is attached to a power line, and there is also old-fashioned telephone cable out to it as well, which will cost less (probably).
3. The device does not send a lot of information, and can get some use out of the long-range, low-bandwidth radio communication systems.
I'm happy for the company to prove me wrong by coming out with a small, power efficient, and cheap satellite connection system that can be connected to anything. I wouldn't wait on it, though.