Spacesuits bending at the waist
Reading Popular Mechanics (september), there's an article by former astronaut Tom Jones about "How we'll live on the Moon".
He writes that his 2001 spacesuit was too stiff on the waist for easy walking or bending. Also the Apollo spacesuits were too stiff on the waist and knees. (Though I wonder about the knees as they did bend them once in a while). I agree about the waist (but wonder if it's that important). Dean Eppler is working on it and here's a spacesuit that allows for a bending that was never seen on the Moon: