Marty Cooper quite literally invented the cellphone during his tenure as a division manager at Motorola, demonstrating it for the first time in April of 1973 when he famously called his chief rival — Bell Labs' Joel Engel — to personally deliver the news that he'd been beaten. In the years since, he's been a successful entrepreneur several times over, most recently working with his wife on GreatCall, the company that offers the simple Jitterbug phone targeted at seniors. We had the opportunity to sit down with Mr. Cooper for a call last week that spanned nearly an hour and a wide array of topics, from his time working on two-way radios in the pre-cellular years to the so-called "spectrum crunch" that's dominating headlines today.

Image credit: dsearls (Flickr)