Technically, there is no Ft. Myers airport, SWFI is considered an airport for the region. Afterall it serves Ft. Myers, Bonita Beach, Naples, Punta Gorda, Sanibel, Captiva etc. Of course that's if you want to get anal about it.
EDIT: Oh yeah you're original questions I forgot. RSW has two concourses but it's really one that's been divided in half. Concourse A and Concourse B. It's a pretty small airport so you shouldn't have any trouble getting around. Since the secured areas are rather small there aren't many options there but there's a Burger King I think and a few others outside of security. Don't plan on eating at the airport though, I wouldn't reccommend it anyway.
[Edited 2004-12-13 00:37:15]