Discussion on:

Invention: A portable wall for crowded public transit

This is so simple and yet wonderful, particularly in crowded airplanes where a little private space in a crowded economy section can be a real blessing. Different height options should be considered and the base of the "L" shape should be flexible and comfortable to sit on. This should sell like hot cakes.

Just somthing els to carry

I bet the TSA will love it. And I am sure the airlines will consider it a carry on item which affects what else you can bring on board..