A friend sent me this link to an interesting article published by the (Canadian) National Post.
Walking away from a crash
David Booth, National PostPublished: 9/5/2008 12:00:00 AM
It's probably the best thing to happen to motorcycles since the swingarm rear suspension and yet it doesn't make bikes go any faster. You might only ever use it once, yet it may be the most important purchase you ever make. Every bike should have one, but only one does and it may just save your life one day.