http://www.amazon.com/Belkin-Clip-Re...pr_product_top
This is actually a pretty good light. It is kinda loose but hella bright. You can clip it on top or on the side of the kindle. The light has two modes and could move around easily at ease so it can be used as a flashlight. Very easy to carry on.
The reason I find this light good because it seems versatile for future e-readers to come.