Not sure if you get to read this Clive, seeing as it's fairly old now, but thanks for this and for Logic 101, while neither subject was new to me, both taught me things I didn't know.
(whether this old dog CAN learn new tricks is open to question....)
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.