It is really interesting how that article is still valid.
When you have done the homework and selected a good low-power chip already, you must address the energy-efficiency techniques you describe to preserve your Coulombs.
Writing software thinking about Energy-Delay Product is not something that is usual, though. One has to change the way of thinking about accesses, classes and external memory.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.