I'm thinking those "flappy things" provide cable plug support and could save some possible damage to cables and the ports themselves. On more than one occasion I've caught the charge cable on something while picking up my N7 and was truly worried that I may have damaged something. Enough times doing that and I'm sure the micro USB/charge socket will be damaged. Same goes for the earphone port. If I wasn't so broke right now I think I'd grab one of these cases. Looks like a pretty nice piece.