RF transmit has been stuck at 0dBm/15mA for a decade.
Actually, the XBee Pros do 18dBM, albeit at higher current. I guess you're saying
the new standard favors low-power transmit, but more sensitive receivers, so it's
easier to build a wide mesh of low-power nodes. Still, we have to see it in reliable
operation.
Dash7 all sounds good. Not sure it will take over the world, however, :-). There have
been a zillion new "standards" over the past 15 years. Some of us have been around
long enough to see many of them come and go. Can you point to some hardware
modules that are commercially available right now?